Contradiction with Matthew 26:73-74
While Luke 22:58 records the second denial during the same questioning, Matthew describes Peter's third denial differently, making the sequence and number of denials appear inconsistent.
Matthew 26:73-74: Then began he to curse and to swear, [saying], I know not the man. And immediately the cock crew.
Contradiction with Mark 14:70-71
In Mark, it's suggested that the bystanders recognized Peter during this denial, adding confrontation detail inconsistent with the implied setting in Luke 22:58.
Mark 14:70-71: And he denied it again. And a little after, they that stood by said again to Peter, Surely thou art [one] of them: for thou art a Galilaean, and thy speech agreeth [thereto].
Contradiction with John 18:25-26
John's account has Peter's denial and the questioning details slightly varied in terms of who questions him, presenting a contradiction to Luke's version.
John 18:25-26: And Simon Peter stood and warmed himself. They said therefore unto him, Art not thou also [one] of his disciples? He denied [it], and said, I am not.