The rule that a text stops being God’s word once humans are involved isn’t historical, surely? What text wouldn’t be written by humans? The Old Testament was also written decades (often centuries) after events, edited, and transmitted by scribes. If human mediation disqualifies divine speech, the OT collapses along with the NT, surely?
The New Testament does claim divine authority. And crucially, it does not present Jesus as a person merely interpreting God’s message. Jesus speaks as God, not about God (“You have heard… but I say”; “My words will not pass away”). He forgives sins, redefines Torah, and identifies himself with God’s own authority — things no prophet does.
Saying “Jesus is still a human interpreting God” simply assumes the conclusion. The NT’s central claim is the incarnation: God speaking in human nature. If that claim is false, then reject Christianity outright — but you can’t accept Jesus’ role and deny the claim he makes about himself.
This is the doctrinal fault line. Judaism rejects the NT precisely because it rejects the incarnation — not because the NT lacks claims to divine authority, but because it makes too strong a claim.
“Written decades later” isn’t a defeater. By ancient standards the NT is exceptionally early, with core creeds dating within years of the events and circulation while eyewitnesses were alive.
On transmission, the NT is among the best-attested texts of antiquity. By comparison, Tacitus, Thucydides, Plato, or Caesar survive in far fewer manuscripts, often copied centuries later, yet no one dismisses them as “merely human testimony” on that basis.
Canon councils didn’t invent authority — they recognised books already functioning as authoritative across the early church.
And the hard divide between “direct revelation” and “human interpretation” doesn’t work. All revelation uses human language. If God cannot speak through human means, then revelation is impossible.
Christianity’s claim isn’t that God bypassed humanity — it’s that God entered it. And that is shown by God (Jesus) directly speaking in the NT to say who he is. But a lot of people wouldn’t think Jesus is God and that would undermine any sort of trust in his Word - if one only trusts the OT human authors as transmitting God’s word, and haven’t examined that the NT isn’t just a rewrite, and is God’s word also transmitted by human had like the OT.