Why does the New Testament still forbid eating blood?

Acts 15 is the Jerusalem council — the early church's landmark decision about what Gentile believers must and must not do. The council's conclusion is clear: the Mosaic law is not binding on Gentiles (Acts 15:10, 15:19). And yet, in the same breath, the council lists four requirements that do apply:

"Abstain from what has been sacrificed to idols, and from blood, and from what has been strangled, and from sexual immorality." — Acts 15:20

Why is the blood-prohibition on that list if the Mosaic law doesn't apply? Because it isn't Mosaic. It is Noahic.

Genesis 9:4 — the source

The first prohibition in the Bible against eating blood appears at Genesis 9:4, more than four centuries before Sinai:

אַ֥ךְ בָּשָׂ֛ר בְּנַפְשׁ֥וֹ דָמ֖וֹ לֹ֥א תֹאכֵֽלוּ׃

"But flesh with its life — its blood — you shall not eat." — Gen 9:4

H5315 nephesh is the word translated "life" here. H1818 dam is blood. The verse ties the two together as co-located: the nephesh is in the dam. Consuming the blood is, in some sense, consuming what carries the life itself. The prohibition follows directly from the grounding claim.

This is spoken to Noah and his sons — all post-Flood humanity, before any distinction between Israel and the nations exists. No Sinai, no Mosaic covenant, no particular ethnic group. The prohibition is addressed to the entire human family as it begins again.

Leviticus picks it up and explains it

Leviticus 17:10-14 develops Gen 9:4 for Israel's cultic context:

"For the life (nephesh) of the flesh is in the blood, and I have given it to you upon the altar to atone for your lives (nafshoteikhem), for it is the blood that makes atonement by the life." — Lev 17:11

The Mosaic law doesn't invent the blood-prohibition; it inherits it from Gen 9:4 and gives it a positive sacrificial function. Blood is set apart — not consumed — because it carries the nephesh, and on the altar that nephesh-carrying blood atones.

Acts 15 reads Genesis, not Leviticus

The Jerusalem council's reasoning is exactly what Genesis 9 set up: a pre-Sinai, universal obligation. The council explicitly says they are not placing on Gentiles the yoke of the Mosaic law (Acts 15:10: "Why are you putting God to the test by placing a yoke on the neck of the disciples that neither our fathers nor we have been able to bear?"). The blood-prohibition survives the explicit non-imposition of Sinai because it precedes Sinai. The same logic governs the other three items on the list — they all reflect pre-Sinai creational norms, not Mosaic ceremonial code.

The Second Temple Jewish tradition read it the same way. Jubilees 6:7-8 (Hebrew composition c. 150 BC) reproduces Gen 9:4 and calls it the binding law for all subsequent generations, explicitly treating it as pre-Sinai universal ordinance. The Jerusalem council's reading is not novel — it is the standard Second Temple understanding of the Noahic charter.

Hebrews 9:14 — the completion

The chain that began at Gen 9:4 reaches its christological end at Hebrews 9:14:

"The blood (haima) of Christ ... shall cleanse our conscience from dead works to serve the living God."

The same blood that was prohibited from consumption at Gen 9:4 — because it carries the nephesh — is now, in Christ, the haima that cleanses. The blood-law was not abolished; it was fulfilled. What the Noahic prohibition protected (the life-carrying sanctity of blood) is exactly what Christ's haima exhaustively provides.

The full study traces the blood-law from Gen 9:4 through Lev 17:11, Acts 15:20, and Heb 9:14 in The Noahic Charter.