Titus 2:14

14Who gave himself for us. This is another argument of exhortation, drawn from the design or effect of the death of Christ, who offered himself for us, that he might redeem us from the bondage of sin, and purchase us to himself as his heritage. His grace, therefore, necessarily brings along with it “newness of life,” (Romans 6:4,) because they who still are the slaves of sin make void the blessing of redemption; but now we are released from the bondage of sin, in order that we may serve the righteousness of God; and, therefore, he immediately added, —

A peculiar people, zealous of good works; by which he means that, so far as concerns us, the fruit of redemption is lost, if we are still entangled by the sinful desires of the world. And in order to express more fully, that we have been consecrated to good works by the death of Christ, he makes use of the word purify; for it would be truly base in us to be again polluted by the same filth from which the Son of God hath washed us by his blood. (255)