Contradiction with John 4:9
Samaritans have no dealings with Jews, contradicting the thankfulness expressed by a Samaritan to Jesus in Luke 17:16.
John 4:9: Then saith the woman of Samaria unto him, How is it that thou, being a Jew, askest drink of me, which am a woman of Samaria? for the Jews have no dealings with the Samaritans.
Contradiction with Matthew 15:24
Jesus states he is sent only to the lost sheep of Israel, opposing the gratitude shown towards him by a non-Israelite, a Samaritan.
Matthew 15:24: But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Contradiction with Matthew 10:5-6
Jesus initially instructs his disciples not to go into Samaritan cities, contradicting the scenario where a Samaritan comes to express gratitude to him.
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 2 Kings 17:24
Samaritans are described as foreigners and not part of the Israelite community, conflicting with the inclusive action of a Samaritan showing thanks to Jesus.
2 Kings 17:24: And the king of Assyria brought [men] from Babylon, and from Cuthah, and from Ava, and from Hamath, and from Sepharvaim, and placed [them] in the cities of Samaria instead of the children of Israel: and they possessed Samaria, and dwelt in the cities thereof.