Contradiction with John 3:13
States that no one has ascended to heaven except the Son of Man who came from heaven, which might contradict notions of full comprehension about Jesus Christ's identity as implied in Matthew 16:15.
John 3:13: And no man hath ascended up to heaven, but he that came down from heaven, [even] the Son of man which is in heaven.
Contradiction with Mark 8:18
Jesus questions having eyes but not seeing and ears but not hearing, potentially contradicting the disciples' understanding of His identity.
Mark 8:18: When I brake the five loaves among five thousand, how many baskets full of fragments took ye up? They say unto him, Twelve.
Contradiction with Luke 9:45
The statement is hidden from them so they do not perceive it, which contradicts the clarity implied in finding out Jesus’ identity in Matthew 16:15.
Luke 9:45: But they understood not this saying, and it was hid from them, that they perceived it not: and they feared to ask him of that saying.
Contradiction with Jeremiah 17:9
Describes the heart as deceitful above all things, which can contradict Peter's revelation of Jesus' identity being understood clearly.
Jeremiah 17:9: The heart [is] deceitful above all [things], and desperately wicked: who can know it?