Committing a virtue
The problem with this concept is the peculiar use of 'commit' with 'sin'. It's also used with 'crime' and particular words for crimes, like 'murder', but not with positive concepts or acts. But you can substitute a word, like 'perform' for use with positives.

This raises the question whether sin, or sins, have an independent existance of their own, or if they are only a perversion of virtue, or good. C.S. Lewis took the position somewhere in his writings (I forget where) that this was, in fact the case; that good exists on its own, but evil does not -- it is merely an antonym, as it were, of good.