Ambrose of Milan
Catena Aurea · Lukasevangelium 22
And while he yet spake, behold a multitude, and he that was called Judas, one of the twelve, went before them, and drew near unto Jesus to kiss him. But Jesus said unto him, Judas, betrayest thou the Son of man with a kiss? When they which were about him saw what would follow, they said unto him, Lord, shall we smite with the sword? And one of them smote the servant of the high priest, and cut off his right ear. And Jesus answered and said, Suffer ye thus far. And he touched his ear, and healed him. Then Jesus said unto the chief priests, and captains of the temple, and the elders, which were come to him, Be ye come out, as against a thief, with swords and staves? When I was daily with you in the temple, ye stretched forth no hands against me: but this is your hour, and the power of darkness.
He says, Betrayest thou with a kiss? that is, dost thou inflict a wound with the pledge of love? with the instruments of peace dost thou impose death? a slave, dost thou betray thy Lord; a disciple, thy master; one chosen, Him who chose thee?