90: Why did Jesus descend into Hell?

Sup, Thomists,

Here's Thomas' text for this week:

There are four reasons why Christ together with His soul descended to the underworld. First, He wished to take upon Himself the entire punishment for our sin, and thus atone for its entire guilt. The punishment for the sin of man was not alone death of the body, but there was also a punishment of the soul, since the soul had its share in sin; and it was punished by being deprived of the beatific vision; and as yet no atonement had been offered whereby this punishment would be taken away. Therefore, before the coming of Christ all men, even the holy fathers after their death, descended into the underworld. Accordingly in order to take upon Himself most perfectly the punishment due to sinners, Christ not only suffered death, but also His soul descended to the underworld. He, however, descended for a different cause than did the fathers; for they did so out of necessity and were of necessity taken there and detained, but Christ descended there of His own power and free will: "I am counted among them that go down to the pit; I am become as a man without help, free among the dead" [Ps 87:5–Vulgate]. The others were there as captives, but Christ was freely there.

The second reason is that He might perfectly deliver all His friends. Christ had His friends both in the world and in the underworld. The former were His friends in that they possessed charity; and the latter were they who departed this life with charity and faith in the future Redeemer, such as Abraham, Isaac, Jacob, Moses, David, and other just and good men. Therefore, since Christ had dwelt among His friends in this world and had delivered them by His death, so He wished to visit His friends who were detained in the underworld and deliver them also: "I will penetrate all the lower parts of the earth, and will behold all that hope in the Lord" [Sir 24:45].

The third reason is that He would completely triumph over the devil. Now, a person is perfectly vanquished when he is not only overcome in conflict, but also when the assault is carried into his very home, and the seat of his kingdom is taken away from him. Thus Christ triumphed over the devil, and on the Cross He completely vanquished him: "Now is the judgment of this world; now shall the prince of this world (that is, the devil) be cast out" [Jn 12:31]. To make this triumph complete, Christ wished to deprive the devil of the seat of his kingdom and to imprison him in his own house—which is the underworld. Christ, therefore, descended there, and despoiled the devil of everything and bound him, taking away his prey: "And despoiling the principalities and powers, He hath exposed them confidently in open show, triumphing over them in Himself" [Col 2:15]. Likewise, Christ who had received the power and possession of heaven and earth, desired too the possession of the underworld, as says the Apostle: "That in the name of Jesus every knee should bow, of those that are in heaven, on earth, and under the earth" [Phil 2:10]. "In My name they shall cast out devils" [Mk 16:17].