15 And following Jesus was Simon Peter, and the other disciple, and that disciple was known to the chief priest, and he entered with Jesus to the hall of the chief priest, 16 and Peter was standing at the door without, therefore went forth the other disciple who was known to the chief priest, and he spake to the female keeping the door, and he brought in Peter. 17 Then said the maid keeping the door to Peter, 'Art thou also of the disciples of this man?' he saith, 'I am not;' 18 and the servants and the officers were standing, having made a fire of coals, because it was cold, and they were warming themselves, and Peter was standing with them, and warming himself.
19 The chief priests, therefore, questioned Jesus concerning his disciples, and concerning his teaching; 20 Jesus answered him, 'I spake freely to the world, I did always teach in a synagogue, and in the temple, where the Jews do always come together; and in secret I spake nothing; 21 why me dost thou question? question those having heard what I spake to them; lo, these have known what I said.' 22 And he having said these things, one of the officers standing by did give Jesus a slap, saying, 'Thus dost thou answer the chief priest?' 23 Jesus answered him, 'If I spake ill, testify concerning the ill; and if well, why me dost thou smite?' 24 Annas then sent him bound to Caiaphas the chief priest.
25 And Simon Peter was standing and warming himself, they said then to him, 'Art thou also of his disciples?' he denied, and said, 'I am not.' 26 One of the servants of the chief priest, being kinsman of him whose ear Peter cut off, saith, 'Did not I see thee in the garden with him?' 27 again, therefore, Peter denied, and immediately a cock crew.
Matthew Henry's Commentary on John 18:15-27
Commentary on John 18:13-27
(Read John 18:13-27)
Simon Peter denied his Master. The particulars have been noticed in the remarks on the other Gospels. The beginning of sin is as the letting forth of water. The sin of lying is a fruitful sin; one lie needs another to support it, and that another. If a call to expose ourselves to danger be clear, we may hope God will enable us to honour him; if it be not, we may fear that God will leave us to shame ourselves. They said nothing concerning the miracles of Jesus, by which he had done so much good, and which proved his doctrine. Thus the enemies of Christ, whilst they quarrel with his truth, wilfully shut their eyes against it. He appeals to those who heard him. The doctrine of Christ may safely appeal to all that know it, and those who judge in truth bear witness to it. Our resentment of injuries must never be passionate. He reasoned with the man that did him the injury, and so may we.