Augustine of Hippo
Catena Aurea · Lukasevangelium 15
And he said, A certain man had two sons: And the younger of them said to his father, Father, give me the portion of goods that falleth to me. And he divided unto them his living. And not many days after the younger son gathered all together, and took his journey into a far country, and there wasted his substance with riotous living. And when he had spent all, there arose a mighty famine in that land; and he began to be in want. And he went and joined himself to a citizen of that country; and he sent him into his fields to feed swine. And he would fain have filled his belly with the husks that the swine did eat: and no man gave unto him. It follows, And he began to be in want. Fitly did he begin to be in want who abandoned the treasures of the wisdom and the knowledge of God, and the unfathomableness of the heavenly riches. It follows, And he went and joined himself to a citizen of that country.
(ubi sup.) The husks then with which the swine were fed are the teaching of the world, which cries loudly of vanity; according to which in various prose and verse men repeat the praises of the idols, and fables belonging to the gods of the Gentiles, wherewith the devils are delighted. Hence when he would fain have filled himself, he wished to find therein something stable and upright which might relate to a happy life, and he could not; as it follows, And no one gave to him.