28 That He descended into hell is also evidently foretold in the Psalms, where it is said, “You have brought Me also into the dust of the death.” And again, “What profit is there in my blood, when I shall have descended into corruption?” And again, “I descended into the deep mire, where there is no bottom.” Moreover, John says, “Are You He that shall come (into hell, without doubt), or do we look for another?” Whence also Peter says that “Christ being put to death in the flesh, but quickened in the Spirit which dwells in Him, descended to the spirits who were shut up in prison, who in the days of Noah believed not, to preach unto them;” where also what He did in hell is declared. Moreover, the Lord says by the Prophet, as though speaking of the future, “You will not leave my soul in hell, neither will You suffer Your Holy One to see corruption.” Which again, in prophetic language he speaks of as actually fulfilled, “O Lord, You have brought my soul out of hell: You have saved me from them that go down into the pit.” There follows next—
Source: Commentary on the Apostles' Creed (New Advent)