In their professed service to God, the Jews were really working for self. Their righteousness was the fruit of their own efforts to keep the law according to their own ideas and for their own selfish benefit. Hence it could be no better than they were. In their endeavor to make themselves holy, they were trying to bring a clean thing out of an unclean. The law of God is as holy as He is holy, as perfect as He is perfect. It presents to men the righteousness of God. It is impossible for man, of himself, to keep this law; for the nature of man is depraved, deformed, and wholly unlike the character of God. The works of the selfish heart are “as an unclean thing;” and “all our righteousnesses are as filthy rags.” Isaiah 64:6.
While the law is holy, the Jews could not attain righteousness by their own efforts to keep the law. The disciples of Christ must obtain righteousness of a different character from that of the Pharisees, if they would enter the kingdom of heaven. God offered them, in His Son, the perfect righteousness of the law. If they would open their hearts fully to receive Christ, then the very life of God, His love, would dwell in them, transforming them into His own likeness; and thus through God's free gift they would possess the righteousness which the law requires. But the Pharisees rejected Christ; “being ignorant of God's righteousness, and going about to establish their own righteousness” (Romans 10:3), they would not submit themselves unto the righteousness of God.
Jesus proceeded to show His hearers what it means to keep the commandments of God—that it is a reproduction in themselves of the character of Christ. For in Him, God was daily made manifest before them. MB 54,55
