The body indeed is not divided, so that one part indeed should be exposed to torments, the other escape. For this is a fable, nor is it a part of just judgment when the whole has offended that half only should suffer punishment; nor is the soul cut in sunder, seeing that the whole possesses a guilty consciousness, and cooperates with the body to work evil; but its division is the eternal severing of the soul from the Spirit. For now although the grace of the Spirit is not in the unworthy, yet it seems ever to be at hand expecting their turning to salvation, but at that time it will be altogether cut off from the soul. The Holy Spirit then is the prize of the just, and the chief condemnation of sinners, since they who are unworthy will lose Him.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: in lib. de Sp. San. c. 16.