Thomas Aquinas

“ Christ's Passion was a kind of universal cause of men's salvation, both of the living and of the dead. But a general cause is applied to particular effects by means of something special. Hence, as the power of the Passion is applied to the living through the sacraments which make us like unto Christ's Passion, so likewise it is applied to the dead through His descent into hell. ”

“ But it is clear the unbelievers were in the hell of the lost. Therefore Christ went down into the hell of the lost.
Objection 4: Further, Augustine says (Ep. ad Evod. clxiv) : "If the sacred Scriptures had said that Christ came into Abraham's bosom, without naming hell or its woes, I wonder whether any person would dare to assert that He descended into hell. But since evident testimonies mention hell and its sorrows, there is no reason for believing that Christ went there except to deliver men from the same woes." But the place of woes is the hell of the lost. ”

“ Christ's Person is whole in each single place, but not wholly, because it is not circumscribed by any place: indeed, all places put together could not comprise His immensity; rather is it His immensity that embraces all things. ”

“ But as Adam's sin was contracted by those only who descended seminally from him according to the flesh, so Christ's grace reached those only who became His members by spiritual regeneration: which does not apply to children dying in original sin. ”

“ Now men were held fast by the debt of punishment in two ways: first of all for actual sin which each had committed personally: secondly, for the sin of the whole human race, which each one in his origin contracts from our first parent, as stated in Rom. 5 of which sin the penalty is the death of the body as well as exclusion from glory, as is evident from Gn. 2 and 3: because God cast out man from paradise after sin, having beforehand threatened him with death should he sin. ”

“ On the contrary, Gregory says (Moral. xiii) : "Since our Creator and Redeemer, penetrating the bars of hell, brought out from thence the souls of the elect, He does not permit us to go thither, from whence He has already by descending set others free." But He permits us to go to Purgatory. Therefore, by descending into hell, He did not deliver souls from Purgatory.
I answer that, As we have stated more than once (A [4] , ad 2, AA [5] ,6,7) , Christ's descent into hell was one of deliverance in virtue of His Passion. ”

“ Christ's power operates in the sacraments by way of healing and expiation. Consequently, the sacrament of the Eucharist delivers men from Purgatory inasmuch as it is a satisfactory sacrifice for sin. But Christ's descent into hell was not satisfactory ”