Reply to Objection 3: He who receives faith from God without charity, is healed from unbelief, not entirely (because the sin of his previous unbelief is not removed) but in part, namely, in the point of ceasing from committing such and such a sin. Thus it happens frequently that a man desists from one act of sin, through God causing him thus to desist, without desisting from another act of sin, through the instigation of his own malice. And in this way sometimes it is granted by God to a man to believe, and yet he is not granted the gift of charity: even so the gift of prophecy, or the like, is given to some without charity.
Treatise on The Theological Virtues · Question 62
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