Darkness That Can Be Felt
At the ninth plague the God who said 'let there be light' says 'let there be darkness' — the same jussive, the opposite noun — and Egypt reverts to the uncreated dark while Israel keeps the only light in all of Exodus.
On the first day of creation, God spoke two words and the universe answered. "Let there be light" — יְהִי אוֹר (yehi or), a single jussive verb and a single noun (Gen 1:3). The verb is H1961 (hayah, "to be") in its volitional, short form: not a description but a command, the Creator willing a thing into being. At the ninth plague God speaks again, in the same grammar. "Let there be darkness" — וִיהִי חֹשֶׁךְ (viyhi choshekh) — the identical Qal jussive of H1961, the same syntactic slot, the same divine will (Exo 10:21). Only the noun is changed. Where creation said "light" (H216), the plague says "darkness" (H2822). The God who made light unmakes it. Egypt reverts to the condition of Genesis 1:2 — darkness over the deep — while Israel alone keeps the light of Genesis 1:3. The ninth plague is an act of un-creation, and the eighth plague, the locusts, is its overture.
The Purpose and the Locusts
Exodus 10 opens not with the plague but with its reason. YHWH tells Moses he has hardened Pharaoh's heart (הִכְבַּדְתִּי, H3513 Hiphil, Exo 10:1) for a stated double purpose: that the signs be set among them, and "that you may recount (תְּסַפֵּר, H5608 Piel) in the ears of your son and your son's son" what God did in Egypt (Exo 10:2). The plagues are deliberately fashioned into oral history, meant for transmission across generations — the same verb (H5608) that earlier carried YHWH's purpose "that my name be declared in all the earth" (Exo 9:16). The earlier study on Pharaoh's hardening traces that thread in full; here it is enough to note that the recounting and the hardening stand together at the chapter's head. The signs are made to be told.
Then the locusts. Pharaoh's own servants crack first: "do you not yet know that Egypt is ruined?" (אָבְדָה מִצְרָיִם, Exo 10:7). Pharaoh offers a hollow compromise — the men only, not the children (הַגְּבָרִים, H1397, Exo 10:11) — and is refused. The east wind brings locusts (אַרְבֶּה, H697, seven occurrences in this chapter) that cover "the eye of the land" so that "the land was darkened" (וַתֶּחְשַׁךְ הָאָרֶץ, Exo 10:15). The verb here is H2821 (chashakh), the verbal cognate of the noun H2822 that will dominate the next plague: the locusts darken the land as a preview, in motion, of the darkness that will fall as a state. Pharaoh issues his first "I have sinned" (חָטָאתִי, Exo 10:16) and calls the locusts "this death" (הַמָּוֶת הַזֶּה, H4194, Exo 10:17) — naming the plague with the very word for what plague ten will bring. A strong "sea wind" (רוּחַ־יָם, H7307 + H3220 — the west wind, off the Mediterranean to Egypt's west, Exo 10:19) drives the locusts into the sea; the hardening continues (וַיְחַזֵּק, H2388, Exo 10:20).
One detail looks forward. The locusts were such that "before them there were no such locusts as they, nor after them shall be such" (Exo 10:14) — a formula Joel will closely echo for his eschatological army (Joel 2:2). The eighth plague frames the ninth; it is not the center. The center is the darkness.
"Let There Be Darkness": The Un-creation
At Exodus 10:21 the grammar turns the world back. YHWH commands Moses to stretch out his hand, "וִיהִי חֹשֶׁךְ עַל־אֶרֶץ מִצְרָיִם" — "and let there be darkness over the land of Egypt." The verb וִיהִי is H1961 in the Qal jussive, third masculine singular [HC/Vqj3ms] — the volitional form, the form of a command issued to reality itself. It is the same form as יְהִי in "let there be light" (Gen 1:3, H1961 jussive + H216) — the same Qal jussive, now carrying the prefixed conjunction. Same verb, same parsing, same position in the clause. The only change is the noun: H216 (light) becomes H2822 (darkness). This is not a thematic resemblance; it is grammatical identity with the object reversed. The first creative word of Genesis is spoken backward over Egypt.
The reversal runs element by element. In Genesis 1:2 darkness lay "over the face of the deep"; in Exodus 10:21 darkness is commanded "over the land of Egypt" — the uncreated condition returns, now localized. In Genesis 1:4 "God saw (וַיַּרְא, H7200) the light, that it was good"; in Exodus 10:23 "they did not see (לֹא־רָאוּ, H7200 negated) one another." The verb of creation's first act of evaluation — sight responding to light — is annulled. Not merely is it dark; the faculty creation associated with light no longer functions. In Genesis 1:4 "God separated (וַיַּבְדֵּל, H914) between the light and the darkness"; in Exodus 10:23 the separation is re-enacted geographically — Egypt in darkness, Israel in light. And in Genesis 1:5 the darkness was ordered and named "Night," bounded within the rhythm of evening and morning; in Exodus 10:22 the darkness swallows "three days" (שְׁלֹשֶׁת יָמִים, H3117) whole — daytime itself becomes night, the rhythm undone.
A comparison of the two passages confirms the design: Exodus 10:21–23 and Genesis 1:2–5 share seven terms — among them H1961 (be), H2822 (darkness), H216 (light), H3117 (day), and H7200 (see) — twenty-nine percent of the plague passage's significant vocabulary. The separating of light from darkness (H914, Gen 1:4) is not a shared word but a shared structure: the plague re-enacts it geographically, drawing the boundary between Egypt and Goshen instead of between two named realms. The terms do not merely overlap; they play inverted roles. What creation joined, the plague sunders; what light established, darkness cancels. This is the exegetical claim, stated plainly because the grammar states it: at the ninth plague YHWH reverses the first day of creation over Egypt. Egypt returns to tohu-darkness; Israel, the people God is forming as a new humanity, keeps the light. The earlier study on Isaiah 45:7 — "I form light (H216) and create darkness (H2822)" — argued that YHWH claims sovereign authorship of both. The ninth plague is that claim enacted as narrative: the maker of darkness makes it, deliberately, as judgment.
The prophets recognized this grammar. When Jeremiah foresaw covenant judgment falling on the land, he reached for exactly the same template: "I looked at the earth, and behold, it was tohu va-vohu (תֹהוּ וָבֹהוּ) — formless and void — and to the heavens, and they had no light (אוֹר)" (Jer 4:23). He quotes the Genesis 1:2 phrase directly and then names the un-creation as the absence of light, where Exodus 10 names it as the presence of commanded darkness — two sides of the same reversal. Jeremiah describes as prophecy what Exodus 10 enacts as event: judgment as the world running backward toward the dark.
Israel's own hymnody remembered the plague in exactly this language. The historical psalm that recites the plagues sums the ninth in a single line: "He sent darkness (חֹשֶׁךְ, H2822) and made it dark (וַיַּחְשִׁךְ, H2821)" (Psa 105:28) — the noun and its cognate verb set side by side, the deed and its name in one breath. A Dead Sea Scroll preserves the verse. The same pairing the chapter builds — the verb H2821 darkening the land under the locusts (Exo 10:15), the noun H2822 falling as the ninth plague — is how the Psalmist, centuries later, still told the story.
The Darkness That Can Be Felt
The plague has a strange second clause: וְיָמֵשׁ חֹשֶׁךְ — "and let the darkness be felt" (Exo 10:21). The verb is H4959 (mashash, "to feel, grope"), and its form here is the only one of its kind in the entire canon. Of the nine occurrences of this root across eight verses, every other is Qal or Piel, and in every other a person does the groping — a blind man feeling for a wall, a hand searching in the dark. Here alone the verb is Hiphil [HC/Vhu3ms], the causative stem, and the subject is the darkness itself. The darkness does not merely sit there to be groped through; it causes groping. It is an agent. The grammar makes the dark a thing with weight, pressing on the body, a darkness that gropes at the man rather than the man groping at it.
The Septuagint translators, working in Alexandria two centuries before Christ, met this anomaly with a coined adjective: ψηλαφητὸν σκότος (psēlaphēton skotos), "touchable darkness," "darkness that can be handled" (LXX Exo 10:21). They took the Hebrew causative force and rendered it as a property — the darkness is the kind of thing one can touch. Both witnesses, Hebrew and Greek, testify to the same impossibility: darkness with substance.
The text is secure where it matters most. The Masoretic Text preserves וְיָמֵשׁ חֹשֶׁךְ, and so do the pre-Christ Exodus scrolls from Qumran, which keep the clause intact roughly a thousand years before the medieval codices. One consolidated edition of the Hebrew omits the phrase — almost certainly a copyist's eye-skip from the first חֹשֶׁךְ to the second — but the older Hebrew witness and the Septuagint together retain it. The palpable darkness is original to the text.
This palpability gripped the Second Temple imagination. The Wisdom of Solomon — a deuterocanonical book written in Greek at Alexandria around the first century BC, valued here as a historical witness to how Greek-speaking Jews read their Scriptures, not as doctrinal authority — devotes its longest single meditation (Wisdom 17:1–18:4) to this one plague. Its author knew the Septuagint's ψηλαφητὸν σκότος and expanded it: the Egyptians were "prisoners of darkness" (δέσμιοι σκότους, Wisdom 17:2), bound by an unseen chain; the night came "from the recesses of powerless Hades" (Wisdom 17:13), the dark of death itself leaking into the land before death's own plague arrived. Most striking, the author calls the plague-darkness an "image" or foretaste "of the darkness that was destined to receive them" (Wisdom 17:20) — reading the ninth plague as a preview of a final, permanent darkness for the wicked. That this is the Wisdom author's interpretation, not the plain claim of Exodus, must be said clearly; but it shows that a Jewish reader two thousand years ago already heard in this darkness the shadow of something eschatological.
| Root | Strong's | Exo 10:21 — H4959 (mashash), Hiphil u 3ms: the only Hiphil of this root in the canon | Deuteronomy, Job, and the crucifixion — the groping arc |
|---|---|---|---|
| וְיָמֵשׁ חֹשֶׁךְ | H4959 (Hiphil) | וְיָמֵ֖שׁ חֹֽשֶׁךְ (HC/Vhu3ms)Exo 10:21 | The Hiphil makes the darkness causative: it does not merely exist — it causes the groping. In Qal/Piel (all other occurrences) a person gropes through darkness; here darkness gropes at the person. The pre-Christ Qumran Exodus manuscripts preserve the clause. The Septuagint renders it ψηλαφητὸν σκότος ('touchable/palpable darkness') — capturing the sensory anomaly through a different grammatical strategy.Exo 10:21 (Qumran pre-Christ) |
| תְּמַשֵּׁשׁ בָּאֲפֵלָה | H4959 + H653 | וְהָיִיתָ מְמַשֵּׁשׁ בַּצָּהֳרַיִם כַּאֲשֶׁר יְמַשֵּׁשׁ הַעִוֵּר בָּאֲפֵלָהDeu 28:29 | You shall grope (H4959 Piel) at noon as a blind man gropes in the afelah (H653). The covenant curse of Deuteronomy 28 uses both H4959 and H653 — the exact pair that defines the ninth plague (Exo 10:21 Hiphil H4959; Exo 10:22 H653 absolute). The plague enacts the Mosaic covenant curse upon Egypt before it is legislated for Israel. Pattern comparison: 6 shared terms (25% / 30%).Deu 28:29 — STRONG PATTERN |
| יְמַשְׁשׁוּ חֹשֶׁךְ | H4959 + H2822 + H216 | יְמַשְׁשׁוּ-חֹשֶׁךְ וְלֹא-אוֹרJob 12:25 | They grope (H4959 Piel) in darkness (H2822) without light (H216). Job 12:25 is the only verse in the entire canon — outside Exo 10:21–23 — where the triple H4959 + H2822 + H216 appears together. The context: YHWH strips leaders of wisdom; they wander like drunkards in the dark. The same condition as Egypt under the ninth plague is named as the condition of those from whom God withdraws sovereign order. Pattern comparison: 5 shared terms (21% / 38%).Job 12:25 — PROBABLE ALLUSION |
| σκότος ἐπὶ πᾶσαν τὴν γῆν | G4655 | σκότος [G4655] ἐγένετο ἐπὶ πᾶσαν τὴν γῆν ἕως ὥρας ἐνάτηςMat 27:45 | From the sixth hour darkness (G4655 σκότος) fell upon all the land until the ninth hour. The LXX of Exo 10:21–22 uses the same σκότος (G4655) + ἐπί + γῆν construction; LXX Exo 10:22 (ἐγένετο σκότος … ἐπὶ πᾶσαν γῆν Αἰγύπτου) matches Matthew most closely, sharing both the verb ἐγένετο and 'all the land' (πᾶσαν … γῆν). Duration mirrors in reverse ratio: Exo = three days; crucifixion = three hours. Both are 'all the land' under σκότος. In the plague, Egypt bore the darkness while Israel had light; at the cross, the one bearing Egypt's judgment is the one who is himself the light of the world. Rev 16:10 closes the arc: ἐγένετο ἡ βασιλεία αὐτοῦ ἐσκοτωμένη — 'his kingdom became darkened' — the beast's throne-city receives the plague that fell on Pharaoh's Egypt.Mat 27:45; Mrk 15:33; Rev 16:10 — STRONG PATTERN |
The Prototype of the Day of YHWH
The ninth plague gives the prophets their vocabulary for the end. The two nouns that name the darkness at Exodus 10:22 — חֹשֶׁךְ (H2822, "darkness") and אֲפֵלָה (H653, "thick darkness") — co-occur in only five verses in the entire canon: Exodus 10:22, Isaiah 58:10, Isaiah 59:9, Joel 2:2, and Zephaniah 1:15. Two of those five (Isaiah 58:10; 59:9) use the pair to describe darkness as a condition — overcome in one, confessed in the other — not as judgment. The remaining three are judgment oracles, and they form a direct line: the plague, then Joel, then Zephaniah.
At Exodus 10:22 the phrase is חֹשֶׁךְ־אֲפֵלָה, H2822 in the construct state bound to H653 in the absolute — "a darkness of thick-darkness," an intensifying genitive that piles dark upon dark. Joel and Zephaniah take both words and set them in an identical four-term formula: יוֹם חֹשֶׁךְ וַאֲפֵלָה יוֹם עָנָן וַעֲרָפֶל — "a day of darkness and thick-darkness, a day of cloud and heavy-cloud" (Joel 2:2; Zephaniah 1:15, word for word the same). The Day of YHWH is described in the language of the ninth plague. The prophets are not inventing an image; they are projecting the Exodus event forward onto the eschatological horizon. The God who darkened Egypt will darken the world.
Joel makes the debt explicit twice over. His Day of YHWH opens with the plague's two darkness-words (Joel 2:2), and his locust army is "such as has never been from of old, nor will be after it to the years of generation upon generation" (Joel 2:2) — the same kind of formula Exodus 10:14 used of the locusts of the eighth plague ("before them there were no such locusts, nor after them shall be such"), recast rather than quoted word for word. Joel reaches back to both the eighth and the ninth plagues, locusts and darkness together, and binds them into a single picture of the last day. Amos states the principle without the second noun: the Day of YHWH "is darkness (H2822), and not light (H216)" (Amos 5:18, 20) — the same antithesis Exodus 10:22–23 enacts, Egypt in darkness and Israel in light, now made a prophetic axiom. The texts of both Joel and Zephaniah are confirmed by pre-Christ and early manuscript witnesses, including a Wadi Murabbaʿat scroll for Zephaniah.
| Root | Strong's | Exo 10:22 — the ninth plague | Joel, Zephaniah, Amos — the Day of YHWH |
|---|---|---|---|
| חֹשֶׁךְ אֲפֵלָה | H2822 + H653 | וַיְהִי חֹשֶׁךְ-אֲפֵלָה בְּכָל-אֶרֶץ מִצְרַיִם שְׁלֹשֶׁת יָמִיםExo 10:22 | There was darkness of thick-darkness in all the land of Egypt — three days. H2822 here is noun, singular, masculine, CONSTRUCT (not absolute): the construct-absolute chain is an intensifying genitive. The pre-Christ Qumran Exodus manuscripts preserve the construct chain; the consolidated Hebrew edition agrees with the Masoretic Text.Plague 9 — prototype |
| יום חשך ואפלה | H2822 + H653 | יוֹם חֹשֶׁךְ וַאֲפֵלָה יוֹם עָנָן וַעֲרָפֶלJol 2:2 | The Day of YHWH: 'a day of darkness and thick-darkness, a day of cloud and heavy-cloud.' Joel adopts both terms of the ninth plague (H2822 + H653) as the opening description of the eschatological Day. His army description then closely echoes Exo 10:14: 'the like of which has never been from of old, and after it none like it' (Jol 2:2) — recasting, not quoting, the formula 'before them there were no such locusts, nor after them shall be such' (Exo 10:14). A pre-Christ Joel witness confirms.Jol 2:2 (DSS confirmed) |
| יום חשך ואפלה | H2822 + H653 | יוֹם חֹשֶׁךְ וַאֲפֵלָה יוֹם עָנָן וַעֲרָפֶלZep 1:15 | Word for word the same formula as Joel 2:2. Zephaniah's Day of YHWH oracle reaches for the Exodus plague vocabulary directly. A Wadi Murabbaʿat scroll (preserving a pre-medieval text tradition) confirms the text with no variant.Zep 1:15 (Murabbaʿat confirmed) |
| חֹשֶׁךְ ... וְלֹא-אוֹר | H2822 + H216 | הוּא חֹשֶׁךְ וְלֹא-אוֹרAmo 5:18, 20 | Amos defines the Day of YHWH as 'darkness (H2822), not light (H216)' — the same antithesis Exo 10:22–23 enacts (Egypt in H2822; Israel in H216). Amos does not use H653 (afelah), so this is the antithesis without the construct intensifier — a related but distinct formation. Pattern comparison returns 7 shared terms (29%) with Exo 10:21–23, including H2822 and H216. Amos presupposes an audience who knows darkness = divine judgment = the Exodus pattern.Amo 5:18, 20 |
The Covenant Curse and the Only Light in Exodus
Two threads converge on the darkness. The first is covenant curse. When Moses later lists the curses for breaking the covenant, one of them is this: "you shall grope (מְמַשֵּׁשׁ, H4959) at noon as the blind man gropes in the afelah (בָּאֲפֵלָה, H653), and you shall not prosper in your ways" (Deu 28:29). The two unique words of the ninth plague — H4959, the groping, and H653, the thick darkness — appear together again, this time as a sanction written into the Sinai covenant. A comparison of the two passages shows six shared terms, including both of these. The implication is striking: the ninth plague enacts the Mosaic covenant curse upon Egypt before that curse is ever legislated for Israel. Egypt is made to taste, in advance, what Israel will face if she becomes like Egypt. The curse has an internal logic surfaced by the language: the groping happens "at noon" (בַּצָּהֳרַיִם, Deu 28:29) — maximum light available, zero access to it. Job pictures the same paradox: those God catches in their own craftiness "meet with darkness (H2822) in the daytime and grope (H4959) at noon (בַּצָּהֳרַיִם, H6672) as in the night" (Job 5:14). And Job names the full condition once more, in the only verse outside Exodus 10 where the entire triple H4959 + H2822 + H216 clusters: of those from whom God strips wisdom, "they grope (H4959) in darkness (H2822) without light (H216), and he makes them stagger like a drunkard" (Job 12:25). To grope in darkness is the mark of those from whom the sovereign order of God has been withdrawn.
The second thread is the light. The word H216 (or, "light") appears exactly once in all of Exodus — at 10:23: "but for all the sons of Israel there was light (אוֹר) in their dwellings." In a book that opens with slaves and runs through ten plagues and on to the pillar of fire, the single occurrence of the word "light" falls precisely here, at the moment Egypt is plunged into its deepest dark. That placement is compositional emphasis, not accident. It is the positive pole of the un-creation inversion: Israel keeps the Genesis 1:3 condition while Egypt reverts to Genesis 1:2. The earlier study on the division between the peoples traced how YHWH set Goshen apart from Egypt plague after plague; at the ninth plague that division becomes cosmic — no longer a boundary between two regions but a boundary between the created order and its undoing, with God's people on the side of the light. The sea-crossing repeats it at once: the pillar "was cloud and darkness" to Egypt but "lit up the night" for Israel (Exo 14:20, H2822 and H216 again divided).
From that single light a line runs forward. Isaiah restores the sight that Exodus 10:23 annulled: "the people who walked in darkness (H2822) have seen (H7200) a great light (H216)" (Isa 9:2) — the very three words of the un-creation, now reversed into salvation. Isaiah restores the rising that Exodus 10:23 negated, too: where "no one rose (H6965) from his place" in the dark, the restoration oracle commands, "Arise (קוּמִי, H6965), shine, for your light (H216) has come... darkness (H2822) shall cover the earth, but YHWH will rise upon you" (Isa 60:1–2). The verb of Egypt's paralysis becomes the verb of Israel's resurrection-call. And the wisdom tradition makes it a settled principle: "light (H216) rises in the darkness (H2822) for the upright" (Psa 112:4).
| Root | Strong's | Exo 10:23 — the single occurrence of H216 in all of Exodus | Isaiah, Psalms, New Testament — the canonical arc of light from darkness |
|---|---|---|---|
| אוֹר בְּמוֹשְׁבֹתָם | H216 | וּלְכָל-בְּנֵי יִשְׂרָאֵל הָיָה אוֹר בְּמוֹשְׁבֹתָםExo 10:23 | For all the sons of Israel there was light in their dwellings. The word אוֹר (H216) appears nowhere else in the book of Exodus. Its single use falls in the moment of the deepest darkness. Israel on the light side of creation; Egypt returned to the pre-creation state. The pre-Christ Qumran Exodus manuscripts confirm.Exo 10:23 (Qumran confirmed) |
| אוֹר גָּדוֹל | H216 + H2822 + H7200 | הָעָם הַהֹלְכִים בַּחֹשֶׁךְ רָאוּ אוֹר גָּדוֹלIsa 9:2 | The people who walk in darkness (H2822) have seen (H7200) a great light (H216). Exo 10:23 states the condition: 'no one saw (H7200) his brother' — the capacity for sight annulled by darkness. Isa 9:2 declares its reversal: sight restored, light seen. All three terms (H2822, H216, H7200) that constitute the un-creation inversion appear here in their restored form. Pattern comparison returns 5 shared terms with Exo 10:21–23 (21% / 19%). The Great Isaiah Scroll confirms the same vocabulary.Isa 9:2 (DSS confirmed) — PROBABLE ALLUSION |
| קוּמִי אוֹרִי | H6965 + H216 + H2822 | קוּמִי אוֹרִי כִּי בָא אוֹרֵךְ ... וְחֹשֶׁךְ יְכַסֶּה-אֶרֶץIsa 60:1–2 | Arise (H6965), shine; for your light (H216) has come. Darkness (H2822) covers the earth, but YHWH rises over you. In Exo 10:23, 'no one rose (H6965 negated) from his place' — paralysis in the dark. Isa 60:1 commands the opposite movement with the same verb: rise, because light has come. Pattern comparison returns 6 shared terms (25% / 32%). The Great Isaiah Scroll confirms the same vocabulary.Isa 60:1–2 (DSS confirmed) — PROBABLE ALLUSION |
| זָרַח בַּחֹשֶׁךְ אוֹר | H216 + H2822 | זָרַח בַּחֹשֶׁךְ אוֹר לַיְשָׁרִיםPsa 112:4 | Light (H216) rises in the darkness (H2822) for the upright. The same antithesis — H216 belonging to God's people while H2822 covers the landscape — now stated as wisdom principle.Psa 112:4 — POSSIBLE ECHO |
| ἐκ τῆς ἐξουσίας τοῦ σκότους | G4655 | ἐρρύσατο ἡμᾶς ἐκ τῆς ἐξουσίας τοῦ σκότουςCol 1:13 | He delivered us from the dominion of darkness (σκότος, G4655). The LXX renders H2822 as σκότος throughout the plague narrative (Exo 10:21–22). Israel had light in Goshen while Egypt was under the dominion of darkness; Col 1:13 names the new-exodus deliverance with the same vocabulary. The church's condition before Christ matches Egypt in the ninth plague; the rescue matches what Israel experienced at 10:23.Col 1:13 |
The Final Break
The darkness ends negotiation. Pharaoh offers one last compromise — the people may go, but leave the flocks and herds (Exo 10:24) — and Moses refuses, demanding that not a hoof be left behind (Exo 10:26). The hardening recurs a final time (וַיְחַזֵּק, H2388, Exo 10:27). Then Pharaoh banishes Moses on pain of death: "on the day you see my face you shall die" (Exo 10:28), and Moses agrees — "I will not see your face again" (Exo 10:29). The court is closed. The escalation is deliberate: the ninth plague struck the eyes with blindness and the limbs with paralysis ("no one rose"); the tenth will strike the firstborn with death. Pharaoh has already called the locusts "this death" (Exo 10:17); the real death comes next, and it comes without Moses re-entering the room.
The Darkness Reaches the Cross
The Septuagint rendered the ninth plague's darkness with one Greek word: σκότος (G4655), "darkness over the land of Egypt" (LXX Exo 10:21). That word carried the plague into the Gospels. At the crucifixion, "from the sixth hour σκότος fell upon all the land (ἐπὶ πᾶσαν τὴν γῆν) until the ninth hour" (Mat 27:45; so too Mrk 15:33; Luk 23:44). The construction is the Septuagint's own: σκότος … ἐπί … γῆν, the same idiom the Greek translators used for the plague (LXX Exo 10:21, γενηθήτω σκότος ἐπὶ γῆν Αἰγύπτου). The match is tightest with the next verse, LXX Exodus 10:22 — ἐγένετο σκότος … ἐπὶ πᾶσαν γῆν Αἰγύπτου — which shares Matthew's exact verb (ἐγένετο) and his "all the land" (πᾶσαν … γῆν). Three days of darkness over Egypt; three hours of darkness over Golgotha — the same idiom, the same plague-darkness. But the roles are reversed. In Exodus, Egypt bore the darkness and Israel had the light. At the cross, the one bearing the darkness is the very one who is the light of the world. The judgment that fell on Pharaoh's land now falls on God's own Son, in the place of his people, so that they might keep the light.
That reversal is the whole shape of the new exodus. The church's former condition is named in plague-vocabulary: God "delivered us from the dominion of darkness (ἐκ τῆς ἐξουσίας τοῦ σκότους) and transferred us to the kingdom of his beloved Son" (Col 1:13) — delivered, the exodus verb, darkness, the plague noun. And the destination is Israel's portion at Goshen, now given to all who are called: "out of darkness (ἐκ σκότους) into his marvelous light (εἰς τὸ θαυμαστὸν αὐτοῦ φῶς)" (1 Pet 2:9). Exodus 10:23 — light in the dwellings of God's people — is applied to the church.
The arc closes where Pharaoh's began. In the fifth bowl of judgment, the angel pours out his bowl "on the throne of the beast, and his kingdom became darkened (ἐσκοτωμένη, G4656), and they gnawed their tongues in anguish" (Rev 16:10). The bowls recapitulate the Exodus plagues, and here the anti-Pharaoh — the beast — receives the ninth plague exactly: his throne-city plunged into the palpable dark, his people in groping pain. The darkness that fell on Egypt is the darkness reserved for every power that sets itself against God and oppresses his people. Pharaoh hardened his heart and reverted Egypt to the uncreated dark; the beast does the same and meets the same darkness.
Between Pharaoh and the beast stands the cross. The God who said "let there be light" said "let there be darkness" over Egypt; and then, in the fullness of time, he let the darkness fall on himself — three hours over all the land — that his people might be called out of darkness into light. The ninth plague is not finally about Egypt. It is about a God who controls the light and the dark absolutely (Isa 45:7), who judges by un-creation and saves by re-creation, and who entered his own judgment-darkness so that those who were Egypt might dwell, like Israel in Goshen, in the light.
The arc that began with light reserved in Goshen ends with light without limit. In the city that comes down, "there will be no night (νὺξ οὐκ ἔσται) there" (Rev 21:25), and again, "night will be no more; they will need no light of lamp or sun, for the Lord God will give them light (φωτίσει)" (Rev 22:5). The single lamp burning in Israel's dwellings while Egypt groped in the dark (Exo 10:23) becomes a whole city needing no lamp at all, because the God who made the light is its light. The un-creation that fell on Egypt is answered, finally, by a re-creation in which the darkness has nowhere left to fall.