Cap. X Arg. I: Gregory of Valencia — reprobation is the act whereby God firmly establishes to permit the reprobates' sins by not giving singular grace, exclude them from the kingdom, and punish eternally
Gregory of Valencia paints the picture this way (In Aquin. Qu. 23. on reprobation, punct. 1). Reprobation, he says, is an act of the divine intellect. By it God firmly intends to permit the sins of the reprobate, not giving them the singular grace by which they would be freed from those sins — and for those sins will shut them out of the heavenly kingdom and punish them forever.
Latin
Gregorius Valentia reprobationem ita nobis depingit, In Aquin. qu. 23. de reprobatione, punct. 1. Reprobatio est actus Divini intellectus, quo firmiter statuit Deus reprobatorum peccata permittere, non dando iis singularem gratiam qua ab iis liberarentur, et propter illa eos a regno caelesti excludere, ac in aeternum punire.