John 18:25-27

25 Now Simon Peter was standing and warming himself. They said to him, "Are not you also one of his disciples?" He denied it and said, "I am not."

26 One of the servants of the high priest, a kinsman of the man whose ear Peter had cut off, asked, "Did I not see you in the garden with him?"

27 Peter again denied it; and at once the cock crowed.