Christ has purchased in his blood that repenting sinners shall be saved. The law required personal, perfect, and perpetual obedience. It cursed all who could not come up to this: 'Cursed is everyone that continueth not in all things which are written in the book of the law to do them' (Gal. 3.10). It does not say, he that obeys not all things, let him repent, but, let him be cursed. Thus repentance is a doctrine that has been brought to light only by the gospel.
