(20) What mean the testimonies, and the statutes, and the judgments.--These three words appear for the first time together in the introduction to this discourse (Deuteronomy 4:45). The Law, or Torah, includes charges, and institutions, and requirements. The Decalogue itself is primarily the Torah; the charge which follows may come under the head of "testimony." The "statutes" and "judgments" more properly describe the contents of the chapters from Deuteronomy 11-26 inclusive.

Verses 20-25. - The injunction to teach the words of the Lord to the children (ver. 7) is here more largely explained. When asked by their sons the meaning and reason of the commandments and institutes which they observed, they were to show them what the Lord had done for his people in bringing them out of Egypt and establishing them in Canaan, and how he had enjoined on them all these statutes that they might fear Jehovah their God for their good always, and for their preservation and safety.

6:17-25 Moses gives charge to keep God's commandments. Negligence will ruin us; but we cannot be saved without diligence. It is our interest, as well as our duty, to be religious. It will be our life. Godliness has the promise of the continuance and comfort of the life that now is, as far as it is for God's glory. It will be our righteousness. It is only through the Mediator we can be righteous before God. The knowledge of the spirituality and excellency of the holy law of God, is suited to show sinful man his need of a Saviour, and to prepare his heart to welcome a free salvation. The gospel honours the law, not only in the perfect obedience of the Son of God, the Lord Jesus Christ; but in that it is a plan for bringing back apostate rebels and enemies, by repentance, faith, forgiveness, and renewing grace, to love God above all things, even in this world; and in the world above, to love him perfectly, even as angels love him.And when thy son asketh thee in time to come,.... Or "tomorrow" (x); that is, in later times, as Jarchi interprets it; any time after this, and particularly after they were come into the land of Canaan, when the several laws, statutes, and ordinances appointed, would take place and be obeyed:

what mean the testimonies, and the statutes, and the judgments, which the Lord our God hath commanded you? what is the reason of the various rites, customs, and usages, the observance of which is directed to, such as the feasts of passover, pentecost, tabernacles, sacrifices, and other duties of religion?

(x) "cras", V. L. Pagninus, Montanus.