The Law of Moses Is Fulfilled in Christ
1 Know ye not, brethren, (for I speak to them that know the law,) how that the law hath dominion over a man as long as he liveth?
2 For the woman which hath an husband is bound by the law to her husband so long as he liveth; but if the husband be dead, she is loosed from the law of her husband.
3 So then if, while her husband liveth, she be married to another man, she shall be called an adulteress: but if her husband be dead, she is free from that law; so that she is no adulteress, though she be married to another man.
4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
5 For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.
6 But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
Elder Bruce R. McConkie wrote:
“Paul was an absolute genius at devising illustrations to drive home his gospel teachings. Here he compares Israel’s allegiance to the law of Moses with that of a wife to her husband. As long as her husband lives, a wife is bound to him, must obey his laws, and if she be with another, she is an adulteress. But when the husband dies, he can no longer direct her actions, and she is free to marry another; she can no longer be subject to him that is dead.
“So with Israel and the law. As long as the law lived, and was therefore in force, Israel was married to it and required to obey its provisions. If she went after other gods, or followed other religions, it was as adultery. But now the law is fulfilled; it no longer lives; it has become dead in Christ; and Israel is married to another, even to Christ, whose gospel law must now be obeyed.
“As a matter of fact, whenever the Melchizedek Priesthood—which ‘administereth the gospel’ (D&C 84:19)—was found in ancient Israel, the law of Moses was dead, and the people were alive in Christ. Hence, we find Nephi saying, some six hundred years before Christ, ‘Notwithstanding we believe in Christ, we keep the law of Moses, and look forward with steadfastness unto Christ, until the law shall be fulfilled. For, for this end was the law given; wherefore the law hath become dead unto us, and we are made alive in Christ because of our faith; yet we keep the law because of the commandments’ (2 Ne. 25:24–25).”
(Doctrinal New Testament Commentary, 3 vols. [1965–73], 2:253–54.)