Mark 14:70-72

70But again he denied it. After a little while those standing there said to Peter again, “You certainly are one of them, since you’re also a Galilean.”

71Then he started to curse and swear, “I don’t know this man you’re talking about!”

72Immediately a rooster crowed a second time, and Peter remembered when Jesus had spoken the word to him, “Before the rooster crows twice, you will deny me three times.” And he broke down and wept.