What does 'sweep away' mean in Genesis 18?
When Abraham asks 'Will you sweep away the righteous with the wicked?' he deliberately picks the most indiscriminate destruction word in the Hebrew Bible — the word for a wildfire or flood that takes everything in its path without distinction — in order to press the question of whether God's judgment works like that, or like a careful legal verdict.
The word Abraham chooses to open his intercession at Sodom is not a neutral legal term. It is the most alarming verb he could reach for, and the choice is deliberate.
The word: saphah
In Genesis 18:23 Abraham asks: "Will you also saphah the righteous with the wicked?" The Hebrew word is saphah (סָפָה, H5595). Its basic image is sweeping or snatching up — the way a flood takes everything in its path, or a wildfire consumes an entire hillside, making no distinction between what is guilty and what is innocent. The Brown-Driver-Briggs lexicon glosses it: "to sweep or snatch away, catch up, destroy." It is a disaster verb, not a courtroom verb.
This is the contrast Abraham is pressing. He is asking: will you operate like a natural catastrophe (which recognizes no distinctions) or like a judge (who makes careful distinctions)? The word saphah carries the question inside itself.
Four times in two chapters — nowhere else
The word appears 19 times across the entire Old Testament. What makes the Genesis 18–19 use remarkable is this: four of those 19 occurrences — 21% of the whole canon — fall within two chapters, Genesis 18:23 through Genesis 19:17. No other passage in the Old Testament concentrates saphah this densely.
But there is more. The four occurrences divide into two pairs with a grammatical shift between them:
In Genesis 18:23 and 18:24, the word is in the active form — Abraham asking whether God will sweep away. He is asking about the agent of judgment.
In Genesis 19:15 and 19:17, the word shifts to the passive form — the angels warning Lot that he might be swept away. The object of Abraham's question has become Lot's mortal risk.
"Hurry, take your wife and your daughters, lest you be swept away in the iniquity of the city." — Genesis 19:15
"Flee for your life! Flee to the mountains, lest you be swept away." — Genesis 19:17
The word that launched Abraham's intercession — will you sweep away? — returns as the verb Lot is fleeing. Abraham's question about the worst-case judgment becomes Lot's narrow escape from it.
What this tells us about Abraham's argument
Abraham is not asking whether God will punish Sodom. He assumes Sodom has earned judgment. He is asking whether a righteous remnant can change the mode of judgment — whether Yahweh will operate as a discriminating judge (who distinguishes the righteous from the wicked) rather than as an indiscriminate force of destruction (which takes everything together). The word saphah names the thing he is trying to prevent.
Yahweh's response concedes the principle at every threshold from fifty down to ten: if there are ten righteous, I will not sweep the whole place away for their sake. The saphah model — which does not discriminate — is precisely what Abraham's intercession is designed to replace with the mishpat model: the careful verdict of the judge of all the earth.
The cities ultimately fall because the ten are not found. But the principle holds: even when the threshold is not met, Lot is brought out individually (Genesis 19:29 — "God remembered Abraham and sent Lot out"). The sweeping-away was not arbitrary. The judge who acknowledged that a righteous remnant could ground a rescue honored that principle at the smallest possible scale.
Did Abraham change God's mind when he bargained over Sodom?
Abraham did not change God's information or override God's decision — God already knew everything Abraham was about to say. What Abraham did was take up a posture the Bible calls standing before Yahweh, which turns out to be the canon's defining picture of intercession all the way from Genesis to Hebrews.
What does 'Shall not the Judge of all the earth do right?' mean?
Abraham is not asking a question — he is making an argument. He presses God with God's own character: the divine judge is so thoroughly committed to justice that it would be a desecration of who he is to sweep the innocent away with the guilty.
What does 'righteousness and justice' mean in the Bible?
Righteousness and justice — tsedaqah and mishpat in Hebrew — are the paired moral standard that runs through the entire Bible from Genesis to Revelation. They were first named in God's own speech as the reason he chose Abraham, and every later use by prophets and kings measures against that founding declaration.
Where does Paul get “God forbid” — and why does he use it so often?
Paul’s signature protest phrase “mē genoito” (“God forbid!” / “May it never be!”) is the Greek translation of an ancient Hebrew exclamation Abraham used at Sodom when arguing that God cannot fail to act justly — and Paul deploys it in exactly the same kind of argument, fourteen times across his letters.