Mark 14:66-72 NKJV
Now as Peter was below in the courtyard, one of the servant girls of the high priest came. And when she saw Peter warming himself, she looked at him and said, “You also were with Jesus of Nazareth.”
But he denied it, saying, “I neither know nor understand what you are saying.” And he went out on the porch, and a rooster crowed.
And the servant girl saw him again, and began to say to those who stood by, “This is one of them.” But he denied it again.
And a little later those who stood by said to Peter again, “Surely you are one of them; for you are a Galilean, and your speech shows it.”
Then he began to curse and swear, “I do not know this Man of whom you speak!”
A second time the rooster crowed. Then Peter called to mind the word that Jesus had said to him, “Before the rooster crows twice, you will deny Me three times.” And when he thought about it, he wept.
NKJV: New King James Version