Matthew 26:51

For though they seem even now to hear the Law, yet is it only with the left ear that they hear the shadow of a tradition concerning the Law, and not the truth. The people of the Gentiles is signified by Peter; for by believing in Christ, they become the cause of cutting off the Jews' right ear.

Otherwise; The ear of the High Priest's servant is cut off by the Apostle, that is, Christ's disciple cuts off the disobedient hearing of a people which were the slaves of the Priesthood, the ear which had refused to hear is cut off so that it is no longer capable of hearing.

Who was this "one," who cut off the ear? John saith that it was Peter. For the act was of his fervor. But this other point is worth inquiry, wherefore they were bearing swords? For that they bore them is evident not hence only, but from their saying when asked, "here are two." But wherefore did Christ even permit them to have swords? For Luke affirms this too, that He said unto them, "When I sent you without purse, and scrip, and shoes, lacked ye anything?" And when they said, "Nothing," He said unto them, "But now, he that hath a purse, let him take it, and a scrip, and he that hath no sword, let him sell his garment, and buy one." And when they said, "Here are two swords," He said unto them, "It is enough." Wherefore then did He suffer them to have them? To assure them that He was to be betrayed. Therefore He saith unto them, "Let him buy a sword," not that they should arm themselves, far from it; but by this, indicating His being betrayed. And wherefore doth He mention a scrip also? He was teaching them henceforth to be sober, and wakeful, and to use much diligence on their own part. For at the beginning He cherished them (as being inexperienced) with much putting forth of His power but afterwards bringing them forth as young birds out of the nest, He commands them to use their own wings. Then, that they might not suppose that it was for weakness He is letting them alone, in commanding them also to work their part, He reminds them of the former things, saying, "When I sent you without purse, lacked ye anything?" that by both they might learn His power, both wherein He protected them, and wherein He now leaveth them to themselves by degrees. But whence were the swords there? They were come forth from the supper, and from the table. It was likely also there should be swords because of the lamb, and that the disciples, hearing that certain were coming forth against Him, took them for defense, as meaning to fight in behalf of their Master, which was of their thought only. Wherefore also Peter is rebuked for using it, and with a severe threat. For he was resisting the servant who came, warmly indeed, yet not defending himself, but doing this in behalf of his Master. Christ however suffered not any harm to ensue. For He healed him, and showed forth a great miracle, enough to indicate at once both His forbearance and His power, and the affection and meekness of His disciple. For then he acted from affection, now with dutifulness. For when he heard, "Put up thy sword into its sheath," he obeyed straightway, and afterwards nowhere doeth this.

In another Gospel, (John 18:10.) Peter is represented as having done this, and with his usual hastiness; and that the servant's name was Malchus, and that the ear was the right ear. In passing we may say, that Malchus, i. e. one who should have been king of the Jews, was made the slave of the ungodliness and the greediness of the Priests, and lost his right ear so that he might hear only the worthlessness of the letter in his left.

Or, Peter does not take away the sense of understanding from them that hear, but opens to the careless that which by a divine sentence was taken away from them; but this same right ear is restored to its original function in those who out of this nation believed.