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Keeping the Law of God has not ended. Paul, in Romans 10:4, is contrasting God’s way of righteousness by faith with man’s attempt at righteousness by law. The message of the gospel is that Christ is the end of law as a WAY of righteousness to everyone who has faith.
This verse does not imply that righteousness actually could be obtained by law in OT times and that with the coming of Christ faith has been substituted for law as the way of righteousness. Since the fall of Adam, God has revealed only one way by which men may be saved—by faith in the coming Messiah (Genesis 3:15; 4:3–5; Hebrews 11:4; Romans 4). Nor may the passage be taken to mean that Christ is the termination of law as such and that hence men are no longer under obligation to obey God’s law. But rather, it is law as a method of obtaining righteousness that has been brought to an end by Christ. God’s purpose in proclaiming His laws to Israel was to reveal to them their sinfulness (Romans 3:20) and their need of a Savior (Galatians 3:24).
The Jews had perverted God’s purpose and had used the laws, both moral and ceremonial, as the means of establishing their own righteousness by their own attempts at legalistic obedience. Christ came to bring this mistaken abuse of law to an end and to point the way back to faith. Such faith does not abolish law but rather establishes it. Paul stated: “Do we then nullify [a]the Law through faith? May it never be! On the contrary, we establish the Law” (Romans 3:31).
Christ’s grace made His salvation possible “so that the requirement of the Law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit” (Romans 8:4). Christ sought to lead people to a higher experience of reliance on Him rather their own works, but the Jews refused and desired to make the law their way to salvation. So, He ended their way of thinking – law keeping – as a means to being saved.
In His service,