John 21:7

21:7 Then the disciple whom Jesus loved said to Peter, “It is the Lord!” So Simon Peter, when he heard that it was the Lord, tucked in his outer garment (for he had nothing on underneath it), and plunged into the sea.

Matthew 26:33

26:33 Peter said to him, “If they all fall away because of you, I will never fall away!”

Matthew 26:35

26:35 Peter said to him, “Even if I must die with you, I will never deny you.” And all the disciples said the same thing.

Mark 14:29

14:29 Peter said to him, “Even if they all fall away, I will not!”