Gregory the Great, on Job 40:23

“Will he make a covenant with thee, and wilt thou take him to be a servant for ever?”

“Hence the Lord says to blessed Job concerning the ancient enemy of the human race: "He will swallow up a river and not wonder, and he has confidence that the Jordan will flow into his mouth." For who is signified by the river except the flow of the human race? For this race flows from origin to end, and, as if in the manner of water, runs its course from the flux of the flesh until its appointed end. What is signified by the Jordan except the pattern of the baptized? For since the very Author of our redemption deigned to be baptized in the river Jordan, the multitude of those who are held within the sacrament of baptism is rightly expressed by the name Jordan. Therefore the ancient enemy of the human race swallowed up the river, because from the beginning of the world until the coming of the Redeemer, with scarcely a few elect escaping, he drew the human race into the belly of his malice. Of him it is rightly said: "He will swallow up a river and not wonder," because he does not consider it a great thing when he seizes unbelievers. But what is added is very grave: "And he has confidence that the Jordan will flow into his mouth," because after he seized all the unbelievers from the beginning of the world, he still presumes that he can receive even the faithful. For by the mouth of pestilent persuasion he daily devours those in whose case a wicked life is at variance with the confession of faith.”

Imported from an open dataset — not yet checked against the printed edition.