Observe here, 1. That Moses taught the people all that, and that only, which God commanded him to teach them, Deu 6:1. Thus Christ's ministers are to teach his churches all that he has commanded, and neither more nor less, Mat 28:20. 2. That the end of their being taught was that they might do as they were taught (Mat 28:1), might keep God's statutes (Deu 6:2), and observe to do them, Deu 6:3. Good instructions from parents and ministers will but aggravate our condemnation if we do not live up to them. 3. That Moses carefully endeavoured to fix them for God and godliness, now that they were entering upon the land of Canaan, that they might be prepared for the comforts of that land, and fortified against the snares of it, and now that they were setting out in the world might set out well. 4. That the fear of God in the heart will be the most powerful principle of obedience: That thou mightest fear the Lord thy God, to keep all his statutes, Deu 6:2. 5. The entail of religion in a family, or country, is the best entail: it is highly desirable that not we only, but our children, and our children's children, may fear the Lord. 6. Religion and righteousness advance and secure the prosperity of any people. Fear God, and it shall be well with thee. Those that are well taught, if they do what they are taught, shall be well fed too, as Israel in the land flowing with milk and honey, Deu 6:3.

That thou mightest fear the Lord thy God,.... Being taught to know the greatness of his being, and the nature of his mind and will, and the manner of his worship; and not with a slavish fear, but with a filial one, a reverential affection for God; being instructed in their duty, as of children, to their God and Father; see Deu 5:29.

to keep all his statutes, and his commandments, which I command thee; not in his own name, but in the name, and by the authority of God, whose minister and messenger he was; and all, having the stamp of divine authority on them, were to be observed and kept, and not one to be neglected or departed from:

thou, and thy son, and thy son's son, all the days of thy life; a man and his children, and grandchildren; he was to take care that they kept all the commandments of the Lord as long as he lived, and had any concern with them:

and that thy days may be prolonged; long life being reckoned a very great outward mercy; a long enjoyment of, and continuance in the land of Canaan, is chiefly designed, which is usually expressed when this is observed; see Deu 4:26.