Contradiction with 1 Corinthians 2:14
This verse suggests that spiritual things are discerned spiritually, yet Matthew 16:17 emphasizes a revelation given directly from the Father, bypassing human discernment.
1 Corinthians 2:14: But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned.
Contradiction with John 3:27
This verse claims that a man cannot receive anything unless it has been given from heaven, which could contradict the emphasis on Peter's unique revelation in Matthew 16:17.
John 3:27: John answered and said, A man can receive nothing, except it be given him from heaven. [receive: or, take unto himself]
Contradiction with Acts 10:34-35
Peter states that God shows no favoritism, possibly contradicting Matthew 16:17, where Peter is uniquely blessed with divine revelation.
Acts 10:34-35: Then Peter opened [his] mouth, and said, Of a truth I perceive that God is no respecter of persons: