Contradiction with Matthew 10:5-6
These verses instruct the disciples not to go to the Gentiles or Samaritans, which contradicts Isaiah 56:7's inclusion of foreigners.
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 John 4:22
This verse emphasizes salvation coming from the Jews, contradicting Isaiah 56:7's message of inclusion for all peoples.
John 4:22: Ye worship ye know not what: we know what we worship: for salvation is of the Jews.
Contradiction with Matthew 15:24
Jesus states He was sent only to the lost sheep of Israel, contradicting the acceptance of all nations in Isaiah 56:7.
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
Initially, it was considered unlawful to associate with non-Jews, contrary to the openness in Isaiah 56:7.
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.