Contradiction with Matthew 15:24
Jesus stated he was sent only to the lost sheep of the house of Israel, contrasting the idea of Peter receiving instructions about a Gentile.
Matthew 15:24: But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Contradiction with Acts 10:28
Peter later acknowledges that it is unlawful for a Jew to associate with or visit a Gentile, contradicting the message in Acts 10:6.
Acts 10:28: And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation; but God hath shewed me that I should not call any man common or unclean.
Contradiction with Matthew 10:5-6
Jesus instructed his disciples not to go to the Gentiles, which contrasts with the directive given to Peter in Acts 10:6.
Matthew 10:5-6: These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into [any] city of the Samaritans enter ye not:
Contradiction with Galatians 2:12
Peter withdrew from eating with Gentiles due to fear of the circumcision group, contradicting his earlier response to the instruction in Acts 10:6.
Galatians 2:12: For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision.
Contradiction with Deuteronomy 7:2-3
Israelites are commanded not to make covenants with or intermarry Gentiles, showing a contrast to the interaction portrayed in Acts 10:6.
Deuteronomy 7:2-3: And when the LORD thy God shall deliver them before thee; thou shalt smite them, [and] utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them: