Contradiction with Matthew 13:58
In this verse, Jesus does not perform many miracles in Nazareth due to their unbelief, while in John 4:46, He performs a miracle in Cana for a nobleman's son.
Matthew 13:58: And he did not many mighty works there because of their unbelief.
Contradiction with Mark 6:5-6
These verses describe Jesus being unable to do many mighty works in His hometown because of disbelief, contrasting with the miracle performed in John 4:46.
Mark 6:5-6: And he could there do no mighty work, save that he laid his hands upon a few sick folk, and healed [them].
Contradiction with Luke 11:29
Here, Jesus talks about an evil generation seeking signs, yet in John 4:46, He performs a sign by healing the nobleman's son.
Luke 11:29: And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign; and there shall no sign be given it, but the sign of Jonas the prophet.
Contradiction with Matthew 16:4
Jesus speaks against providing signs to a wicked generation, whereas John 4:46 involves Jesus performing a miraculous sign.
Matthew 16:4: A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.
Contradiction with John 2:23-24
Although many believed in Jesus due to the miracles in this passage, Jesus remains cautious of their faith, which contrasts with the miracle performed freely in John 4:46.
John 2:23-24: Now when he was in Jerusalem at the passover, in the feast [day], many believed in his name, when they saw the miracles which he did.