Whether charity can decrease?

❌ Objection 1 : It would seem that charity can decrease. For contraries by their nature affect the same subject. Now increase and decrease are contraries. Since then charity increases, as stated above (Article [4]), it seems that it can also decrease.

❌ Objection 2 : Further, Augustine, speaking to God, says (Confess. x) "He loves Thee less, who loves aught besides Thee": and (Qq. lxxxiii, qu. 36) he says that "what kindles charity quenches cupidity." For this it seems to follow that, on the contrary, what arouses cupidity quenches charity. But cupidity, whereby a man loves something besides God, can increase in man. Therefore charity can decrease.

❌ Objection 3 : Further, as Augustine says (Gen. ad lit. viii, 12) "God makes the just man, by justifying him, but in such a way, that if the man turns away from God, he no longer retains the effect of the Divine operation." From this we may gather that when God preserves charity in man, He works in the same way as when He first infuses charity into him. Now at the first infusion of charity God infuses less charity into him that prepares himself less. Therefore also in preserving charity, He preserves less charity in him that prepares himself less. Therefore charity can decrease.