Mark 14:71 in the King James Version
But he began to curse and to swear, saying, I know not this man of whom ye speak.
Context
70 But he again denied it. After a little while again those who stood by said to Peter, “You truly are one of them, for you are a Galilean, and your speech shows it.”
71 But he began to curse and to swear, “I don’t know this man of whom you speak!”
72 The rooster crowed the second time. Peter remembered the words that Jesus said to him, “Before the rooster crows twice, you will deny me three times.” When he thought about that, he wept.