Contradiction with Mathew 16:16
This verse, where Peter acknowledges Jesus as the Christ, the Son of the living God, contradicts John 10:20, where people are saying Jesus has a devil and is mad.
Contradiction with Mark 1:1
This verse refers to Jesus Christ as the Son of God, contradicting the claim in John 10:20 where people doubt his divine nature by calling him mad.
Mark 1:1: The beginning of the gospel of Jesus Christ, the Son of God;
Contradiction with John 8:58-59
Here, Jesus asserts his divinity by stating "before Abraham was, I am," which contradicts the accusation in John 10:20 that he is demon-possessed and insane.
John 8:58-59: Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.
Contradiction with Luke 4:41
In this verse, even devils recognize Jesus as the Son of God, contradicting the accusation in John 10:20 that he has a devil and is mad.
Luke 4:41: And devils also came out of many, crying out, and saying, Thou art Christ the Son of God. And he rebuking [them] suffered them not to speak: for they knew that he was Christ. [to speak...: or, to say that they knew him to be Christ]
Contradiction with Acts 10:38
This verse declares that God was with Jesus, contradicting the assertion in John 10:20 that Jesus has a devil and is insane.
Acts 10:38: How God anointed Jesus of Nazareth with the Holy Ghost and with power: who went about doing good, and healing all that were oppressed of the devil; for God was with him.