Cap. III Sol. Rat. 14: same execution order granted — opposite order of intention denied
So we grant God decreed from eternity and foresaw that things would be executed in the same order he executes them in time — but we deny he also intended in that execution-order. In the acts of the divine will and mind there is of themselves no priority of order; in our understanding of the things' relation, execution and intention take plainly opposite orders. The decree of execution always starts from what is farther from the end and steps toward effecting it: God decreed to call Paul before justifying him, to justify and adorn with good works before glorifying. Executive will regards the external actual effecting, so what concurs earlier to producing the thing is referred earlier to that will. Intention, conversely, always starts from the end itself and moves to means so that it always wills first what is nearer the end.
Latin
Damus ergo, Deum eodem ordine quo in tempore mandat res exsecutioni, decrevisse ab aeterno et praevidisse quod mandarentur: sed negamus, eo ordine quo mandat exsecutioni, aut decrevit mandare, etiam intendisse. Nam cum in actibus voluntatis et mentis Divinae per se nulla sit prioritas aut posterioritas ordinis, secundum nostrum modum intelligendi, et rerum ipsarum habitudinem, non idem, sed plane oppositus ordo concipiendus est in exsecutione atque intentione Divina. Decretum exsecutionis orditur semper ab eo quod est remotius ab ipso fine, et sic gradatim progreditur ad effectionem finis: hoc sensu; Deus decrevit vocare Paulum prius quam justificare, justificare et bonis operibus ornare prius quam glorificare. Cum enim decretum exsecutionis, vel voluntas exsecutiva respiciat externam et actualem rei effectionem, illud prius ad hanc voluntatem referatur necesse est quod prius concurrit ad rem efficiendam. Jam vero e contra, Intentio voluntatis orditur semper ab ipso fine, et a fine sic ad media progreditur, ut semper prius id velit quod est fini propinquius.