Matthew 7:24

Therefore. The conclusion and appeal of the Sermon on the Mount is presented in the form of a twofold parable. Compare Luke 6:47-49.

Heareth. Christ doubtless refers here to more than merely listening. Those who hear these sayings apparently grasp their meaning, at least to the extent that they have sufficient light to act if they choose to do so, and thus are responsible before God (see on v. 21).

Doeth them. See on v. 21; cf. ch. 5:19. It is a dangerous thing to hear a divine command if what is heard is not translated into action, for hearing inevitably brings with it responsibility for corresponding action. The “sons of God” are those who follow the leading of His Spirit (Rom. 8:14). Obedience transforms the words of Christ into personal character. See on John 5:24.

I will liken him. Textual evidence favors (cf. p. 146) the reading, “He will be likened.”

His house. That is, the “house” of character.

Upon a rock. The Lord Jesus Christ is the “rock” on which the individual Christian and the Christian church as a community of character builders are to be built (see on ch. 16:18). According to Luke 6:48 the builder “digged deep” in order to have a firm foundation. To build firmly requires much time and effort; it is far simpler to build a house without going to the trouble of providing a solid foundation.