Matthew 26:70 Meaning

68Saying, Prophesy unto us, thou Christ, Who is he that smote thee?

69Now Peter sat without in the palace: and a damsel came unto him, saying, Thou also wast with Jesus of Galilee.

70But he denied before them all, saying, I know not what thou sayest.

71And 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.

72And again he denied with an oath, I do not know the man.