Cap. VIII Arg. 10: God as spiritual sun — reprobation from foresight of putting an obstacle to grace
Tenth: God is as it were a Sun everywhere diffusing rays of spiritual grace. Therefore, as much as in him lies, he imparts spiritual grace to all, unless they put an obstacle to those diffused rays. That he leaves some void of grace and reprobates them happens because he foresaw them putting an obstacle to his grace. So reprobation is from that foresighted evil use of free will.
Latin
Deus est quasi Sol quidam radios gratiae spiritualis ubique diffundens: Ergo quantum in se est, gratiam spiritualem omnibus impertit, nisi diffusis gratiae suae radiis obicem ponant. Quod igitur quosdam gratiae expertes relinquit et reprobat, id inde evenit, quod praevidit hosce ut obicem ponentes gratiae suae. Reprobatio igitur est ex praeviso hoc malo usu liberi arbitrii.