(Mat 26:73) “And after a while came unto him they that stood by, and said to Peter, Surely thou also art one of them; for thy speech bewrayeth thee. (74) Then began he to curse and to swear, saying, I know not the man. And immediately the cock crew.” Peter knew they would be convinced if He cursed and swore, for no follower of Christ would do that! Many times I have had individuals try to convince me their soul was saved while such speech betrayed them.