John 18:25 - 27
KJV - 25 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. 26 One of the servants of the high priest, being his kinsman whose ear Peter cut off, saith, Did not I see thee in the garden with him?
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.