Cap. IX Arg. 7 Sol close: theft/homicide do not precede hanging as means procured by the judge — so reprobates' sins precede damnation as presupposed matter (Cajetan)
Just as theft or homicide does not precede the hanging of thief or murderer as a means the judge procured and applied for that end — only as something presupposed — so the reprobates' sins precede their damnation. God can therefore most justly damn all unbelievers and impenitents: though unbelief follows reprobation, it lies outside the whole effect of reprobation and is born from the reprobate's heart. God does not work, effect, or draw it forth; he foresees, permits, and by special-mercy grace does not impede it — for he is not bound so to impede it. See Cajetan on ST 1 q.23 a.5.
Latin
Sicut igitur furtum aut homicidium non praecedit suspendium furis aut homicidae tanquam medium a judice in eum finem procuratum et adhibitum, sed tantum ut quiddam praesuppositum, sic peccata reprobatorum praecedunt eorum damnationem. Potest igitur Deus justissime damnare omnes infideles et impoenitentes, quia licet infidelitas sequatur reprobationem, tamen est extra totum reprobationis effectum, et nascitur ex corde reprobati; non eam operante, efficiente, aut proliciente Deo, sed praevidente, permittente, et per gratiam specialis misericordiae non impediente, quia non tenetur eum in modum impedire. Vide Cajetanum, in 1. quaest. 23. art. 5.