Cap. IX Arg. 6 Sol open: reprobation does not make God or defect of grace the true cause of human perdition — the sinner with his sins is the true and sole cause
We deny that the reprobation we teach makes God himself — or a defect of divine grace — the cause of human perdition, unless 'cause' is used in an improper or abusive way. The true cause of perdition or damnation is what justly s damnation, or the one who works what damnation is due. So the sinner himself with his sins is to himself the true and sole cause of his perdition. Being reprobated, or passed by from preparation of special grace and mercy, neither deserves nor works perdition. What we teach does not cast damnation's cause on a defect of divine grace; it casts the denial of efficacious special grace on the liberty of divine will. God's will is the determining cause that some are not drawn out of perdition by efficacious unfrustrable grace while others are; the reprobates' own malice is the operative meritorious cause why they perish and are damned.
Latin
Negamus, ex reprobatione a nobis posita aut Deum ipsum constitui causam perditionis humanae, aut Divinae gratiae defectum, nisi causa vocabulum improprie et abusive usurpetur. Perditionis enim sive damnationis vera causa est illud quod damnationem juste meretur, vel ille qui damnatione digna operatur. Sic ipse peccator cum peccatis suis est sibi vera et sola causa perditionis suae. Esse enim reprobatum, vel a gratiae ac misericordiae specialis praeparatione praeteritum, nec meretur nec operatur perditionem. Illa igitur quam docemus non rejicit causam damnationis in Divinae gratiae defectum, sed revera rejicit efficacis et specialis gratiae negationem in Divinae voluntatis libertatem. Dei voluntas causa est determinans, quod quidam per gratiam efficacem et infrustrabilem non eruantur ex perditione, aliis per talem gratiam erutis; sed propria reprobatorum malitia causa est operativa et meritoria cur perdantur et damnentur.