Contradiction with Matthew 27:34
This verse states that Jesus was offered vinegar mixed with gall, but he tasted it and refused to drink it, contradicting that he drank it in John 19:29.
Matthew 27:34: They gave him vinegar to drink mingled with gall: and when he had tasted [thereof], he would not drink.
Contradiction with Proverbs 25:21
This proverb suggests giving drink to one's enemy if he is thirsty, which could be seen as an act of kindness, contrasting the mocking context of giving Jesus vinegar in John 19:29.
Proverbs 25:21: If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:
Contradiction with Luke 23:36-37
Soldiers mockingly offered Jesus vinegar while mocking him as King of the Jews, which emphasizes mockery rather than the fulfillment of scripture as in John 19:29.
Luke 23:36-37: And the soldiers also mocked him, coming to him, and offering him vinegar,