Mark 14:72 in the World English Bible
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.
Context
71 But he began to curse and to swear, saying, I know not this man of whom ye speak.
72 And the second time the cock crew. And Peter called to mind the word that Jesus said unto him, Before the cock crow twice, thou shalt deny me thrice. And when he thought thereon, he wept.