Matthew 12:27

And if I by Beelzebub cast out devils, by whom do your children--"your sons," meaning here the "disciples" or pupils of the Pharisees, who were so termed after the familiar language of the Old Testament in speaking of the sons of the prophets (Kg1 20:35; Kg2 2:3, &c.). Our Lord here seems to admit that such works were wrought by them; in which case the Pharisees stood self-condemned, as expressed in Luke (Luk 11:19), "Therefore shall they be your judges."

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).

12:27 what about your own exorcists (literally your sons): Jesus forced them to think consistently. If demons are cast out under Satan’s influence, then their disciples were equally guilty (see Acts 19:13-16).