Matthew 12:7

But if ye had known what this meaneth, I will have mercy, and not sacrifice-- (Hos 6:6; Mic 6:6-8, &c.). See on Mat 9:13. ye would not have condemned the guiltless--that is, Had ye understood the great principle of all religion, which the Scripture everywhere recognizes--that ceremonial observances must give way before moral duties, and particularly the necessities of nature--ye would have refrained from these captious complaints against men who in this matter are blameless. But our Lord added a specific application of this great principle to the law of the sabbath, preserved only in Mark: "And he said unto them, the sabbath was made for man, and not man for the sabbath" (Mar 2:27). A glorious and far-reaching maxim, alike for the permanent establishment of the sabbath and the true freedom of its observance.

In this chapter, we have, I. Christ's clearing of the law of the fourth commandment concerning the sabbath-day, and vindicating it from some superstitious notions advanced by the Jewish teachers; showing that works of necessity and mercy are to be done on that day (Mat 12:1-13). II. The prudence, humility, and self-denial of our Lord Jesus in working his miracles (Mat 12:14-21). III. Christ's answer to the blasphemous cavils and calumnies of the scribes and Pharisees, who imputed his casting out devils to a compact with the devil (v. 22-37). IV. Christ's reply to a tempting demand of the scribes and Pharisees, challenging him to show them a sign from heaven (Mat 12:38-45). V. Christ's judgment about his kindred and relations (Mat 12:46-50).

12:7 The Pharisees’ view of the Sabbath was unscriptural since it broke the deeper principle of mercy.