Matthew 26:69-72

69 Now Peter sat without in the palace: and a damsel came unto him, saying, Thou also wast with Jesus of Galilee.
70 But he denied before them all, saying, I know not what thou sayest.
71 And when he was gone out into the porch, another maid saw him, and said unto them that were there, This fellow was also with Jesus of Nazareth.
72 And again he denied with an oath*, I do not know the man.
The King James Version is in the public domain.