Contradiction with Matthew 16:22
Peter rebukes the idea of Jesus' suffering and death, whereas Mark 14:16 describes the disciples obediently preparing for the event that signifies the beginning of this suffering.
Matthew 16:22: Then Peter took him, and began to rebuke him, saying, Be it far from thee, Lord: this shall not be unto thee. [Be...: Gr. Pity thyself]
Contradiction with John 13:37
Peter vows to follow Jesus anywhere, including to death, while in Mark 14:16, the disciples are simply setting up the Passover with no mention of such a vow.
John 13:37: Peter said unto him, Lord, why cannot I follow thee now? I will lay down my life for thy sake.
Contradiction with Matthew 26:56
Describes all disciples forsaking Jesus and fleeing, which contrasts with Mark 14:16 where they follow His instructions without question.
Matthew 26:56: And they that had laid hold on Jesus led [him] away to Caiaphas the high priest, where the scribes and the elders were assembled.
Contradiction with John 21:3
The disciples return to fishing post-resurrection, showing a lack of understanding or commitment compared to their obedience in Mark 14:16.
John 21:3: Simon Peter saith unto them, I go a fishing. They say unto him, We also go with thee. They went forth, and entered into a ship immediately; and that night they caught nothing.
Contradiction with Luke 22:24
Disciples argue over who is the greatest soon after preparing the Passover, in contrast with their harmonious obedience in Mark 14:16.
Luke 22:24: And there was also a strife among them, which of them should be accounted the greatest.