Matthew 18:16

18:16 But if he does not listen, take one or two others with you, so that at the testimony of two or three witnesses every matter may be established.

Matthew 26:34

26:34 Jesus said to him, “I tell you the truth, on this night, before the rooster crows, you will deny me three times.”

Matthew 26:75

26:75 Then Peter remembered what Jesus had said: “Before the rooster crows, you will deny me three times.” And he went outside and wept bitterly.