Cap. VIII Arg. 3: hardening (Rom. 9) said to presuppose sins as motive of reprobation
Third: the Apostle styles reprobation thus — He has mercy on whom he will, and whom he will he hardens. But the will to harden presupposes the reprobate's sins in which he is hardened. Therefore the sins with which the reprobate leave this life are the moving or meritorious cause of their reprobation.
Latin
Apostolus vocat reprobationem: Miserebitur cujus vult, et quem vult indurat. Haec autem voluntas indurandi peccata reprobi, in quibus is induratur, praesupponit: Ergo peccata reproborum, cum quibus e vita hac decedunt, sunt causa motiva seu meritoria reprobationis eorundem.