Contradiction with Matthew 16:20
This verse instructs the disciples not to tell anyone that Jesus is the Messiah, while John 1:35 shows the open declaration and acknowledgment by John the Baptist.
Matthew 16:20: Then charged he his disciples that they should tell no man that he was Jesus the Christ.
Contradiction with John 7:10
Jesus goes to the feast in secret, contrasting with the public recognition made by the disciples in John 1:35.
John 7:10: But when his brethren were gone up, then went he also up unto the feast, not openly, but as it were in secret.
Contradiction with John 18:20
Jesus states He has spoken openly to the world, differing from John 1:35 where only His disciples are present when John the Baptist acknowledges Him.
John 18:20: Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing.
Contradiction with Mark 9:9
Jesus tells the disciples to keep the transfiguration a secret until after His resurrection, which contrasts with the straightforward following of Jesus in John 1:35.
Mark 9:9: And as they came down from the mountain, he charged them that they should tell no man what things they had seen, till the Son of man were risen from the dead.
Contradiction with Matthew 9:30
Jesus warns them not to tell anyone about His miracles, contrasting with the openness in John 1:35.
Matthew 9:30: And their eyes were opened; and Jesus straitly charged them, saying, See [that] no man know [it].