Ambrose of Milan
Catena Aurea · Lukasevangelium 15
Now his elder son was in the field: and as he came and drew nigh to the house, he heard musick and dancing. And he called one of the servants, and asked what these things meant. And he said unto him, Thy brother is come; and thy father hath killed the fatted calf, because he hath received him safe and sound. And he was angry, and would not go in: therefore came his father out, and intreated him. And he answering said to his father, Lo, these many years do I serve thee, neither transgressed I at any time thy commandment: and yet thou never gavest me a kid, that I might make merry with my friends: But as soon as this thy son was come, which hath devoured thy living with harlots, thou hast killed for him the fatted calf. And he said unto him, Son, thou art ever with me, and all that I have is thine. It was meet that we should make merry, and be glad: for this thy brother was dead, and is alive again; and was lost, and is found. And how could he feast upon that kid which is Antichrist who did not believe in him? But if to feast upon the slain kid, is the same as to rejoice at the destruction of Antichrist, how does the son whom the father did not entertain say that this was never given him, seeing that all the sons will rejoice at his destruction? His complaint then is, that the Lord Himself was denied him to feast upon, because he deems Him a sinner. For since He is a kid to that nation which regards Him as a violater and profaner of the Sabbath, it was not meet that they should be made merry at his banquet. But his words with my friends are understood according to the relation of the chiefs with the people, or of the people of Jerusalem with the other nations of Judæa.
Or else, This brother is described so as to be said to come from the farm, that is, engaged in worldly occupations, so ignorant of the things of the Spirit of God, as at last to complain that a kid had never been slain for him. For not for envy, but for the pardon of the world, was the Lamb sacrificed. The envious seeks a kid, the innocent a lamb, to be sacrificed for it. Therefore also is he called the elder, because a man soon grows old through envy. Therefore too he stands without, because his malice excludes him; therefore could he not hear the dancing and music, that is, not the wanton fascinations of the stage, but the harmonious song of a people, resounding with the sweet pleasantness of joy for a sinner saved. For they who seem to themselves righteous are angry when pardon is granted to one confessing his sins. Who art thou that speakest against thy Lord, that he should not, for example, forgive a fault, when thou pardonest whom thou wilt? But we ought to favour forgiving sin after repentance, lest while grudging pardon to another, we ourselves obtain it not from our Lord. Let us not envy those who return from a distant country, seeing that we ourselves also were afar off.