The permissive decree, though not effective, is efficacious; God wills that evil come about
Yet they hold that the decree by which God resolved to permit evil as such, though not effective, is nevertheless efficacious. That is why they ascribe everything that is done, good and evil alike, to God's decree which they call, with a Greek word, 'energetic', and which they then subdivide into effective and efficacious.
On their view, once God's permissive decree is in place, it is no less necessary that evil be done with God permitting it than, once his effective decree is in place, that good be done with God approving and bringing it about.
So they insist that it can and should truly be said not only that God wills to permit evil, but also that he wills evil to be done by his permission. The reason is that the divine will is directed not only to permitting evil but also to the actual outcome of the evil action.
Latin
XXVII. Attamen decretum illud quo malum, qua tale, Deus permittere statuit, licet non effectivum, efficax tamen esse volunt: unde est quod omnia quae fiunt, tam bona quam mala, tribuunt decreto Dei, ut graeca voce vocant, energetico, quod postea subdividunt in effectivum & efficax. Nam juxta ipsos, non minus necesse est ut posito Dei decreto permissivo, malum Deo permittente fiat; quam posito Dei decreto effectivo, necesse est ut fiat bonum Deo probante & efficiente. Adeoque pertendunt vere dici posse & debere non solum quod Deus malum permittere velit, sed etiam quod velit malum fieri ipso permittente: Quia, scilicet, divina voluntas non tantum fertur in mali permissionem, sed etiam in eventum ipsius actionis malae.