Whether the aforesaid vices arise from lust?

❌ Objection 1 : It would seem that the aforesaid vices do not arise from lust. For inconstancy arises from envy, as stated above (Article [5], ad 2). But envy is a distinct vice from lust.

❌ Objection 2 : Further, it is written (James 1:8): "A double-minded man is inconstant in all his ways." Now duplicity does not seem to pertain to lust, but rather to deceitfulness, which is a daughter of covetousness, according to Gregory (Moral. xxxi, 45). Therefore the aforesaid vices do not arise from lust.

❌ Objection 3 : Further, the aforesaid vices are connected with some defect of reason. Now spiritual vices are more akin to the reason than carnal vices. Therefore the aforesaid vices arise from spiritual vices rather than from carnal vices.