The first two kinds are from God without us; in the third man acts freely with God
He teaches that these three kinds of works differ with respect to their efficient cause. Works of the first and second kind, such as the prevenient helps and habitual grace, are from God without us. So Peter and Paul were merely passive and contributed nothing when Christ called them, and so the air is passive when it receives light from the sun; in this way the infused virtues, which are supernatural qualities, are put on us while we do nothing.
But as for works of the third kind, the intermediate dispositions to grace, the man who is to be justified is not merely passive toward them but also active. In this respect he cooperates freely with God, as the will produces the act of penitence and of love, and the intellect produces the act of faith. Seventh difficulty, on article 7.
Latin
XVI. Haec vero tria operum genera docet inter se differre respectu causae efficientis, in hoc quod opera primi & secundi generis, ut auxilia praevenientia & gratia habitualis, sunt a Deo sine nobis; quemadmodum Petrus & Paulus passive tantum se habebant, & nihil cooperabantur, quando sunt a Christo vocati; & etiam quemadmodum aer passive se habet recipiens lumen a sole: qua ratione nobis, nihil in eo agentibus, induuntur virtutes infusae, quae sunt qualitates supernaturales: sed quod attinet opera tertii generis, quae sunt dispositiones intermediae ad gratiam, ad ea homo justificandus non se habet passive tantum, verum etiam active: quia hoc respectu Deo libere cooperatur, dum voluntas elicit actum poenitentiae, & amoris, & intellectus fidei actum producit. Septima difficultate ad art. 7.