THE chief general use of Christian doctrine is, to convince a man[37] of sin, and of righteousness, and of judgment, John 16:8, partly by the law or covenant of works, that he may be humbled and become penitent; and partly by the gospel or covenant of grace, that he may become an unfeigned believer in Jesus Christ, and be strengthened in his faith upon solid grounds and warrants, and give evidence of the truth of his faith by good fruits, and so be saved.
