23. But we do not reckon usefulness by the value of any gain in money, but in acquiring godliness, as the Apostle says: “But godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.” 1 Tim. iv. 8. Thus in the holy Scriptures, if we look carefully we shall often find that what is virtuous is called useful: “All things are lawful unto me, but all things are not profitable” [useful]. 1 Cor. vi. 12. Before that he was speaking of vices, and so means: It is lawful to sin, but it is not seemly. Sins rest in one’s own power, but they are not virtuous. To live wantonly is easy, but it is not right. For food serves not God but the belly.