Contradiction with Matthew 10:33
This verse emphasizes that denying Jesus before others leads to Him denying them before God, yet Peter is ultimately forgiven despite his denial.
Matthew 10:33: But whosoever shall deny me before men, him will I also deny before my Father which is in heaven.
Contradiction with John 21:15-17
Jesus gives Peter a chance to reaffirm his love three times, contrasting the three denials.
John 21:15-17: So when they had dined, Jesus saith to Simon Peter, Simon, [son] of Jonas, lovest thou me more than these? He saith unto him, Yea, Lord; thou knowest that I love thee. He saith unto him, Feed my lambs.
Contradiction with Mark 14:30
Jesus predicts Peter's denial differently, suggesting a crowing before sunrise, varying from the context in Luke.
Mark 14:30: And Jesus saith unto him, Verily I say unto thee, That this day, [even] in this night, before the cock crow twice, thou shalt deny me thrice.
Contradiction with Mark 8:38
Warns of shame before God if one is ashamed of Jesus, yet Peter’s denial doesn't lead to that outcome.
Contradiction with Matthew 16:18
Jesus calls Peter the rock upon which the church will be built, which contrasts with his moment of weakness in Luke 22:61.
Matthew 16:18: And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it. [Peter: this name signifies a rock]