Here, I. Moses repeats the directions he had given for the guidance and assistance of the people in their obedience, and for the keeping up of religion among them (Deu 11:18-20), which is much to the same purport with what we had before, Deu 6:6, etc. Let us all be directed by the three rules here given: - 1. Let our hearts be filled with the word of God: Lay up these words in your heart and in your soul. The heart must be the treasury or store-house in which the word of God must be laid up, to be used upon all occasions. We cannot expect good practices in the conversation, unless there be good thoughts, good affections, and good principles, in the heart. 2. Let our eyes be fixed upon the word of God. "Bind these words for a sign upon your hand, which is always in view (Isa 49:16), and as frontlets between your eyes, which you cannot avoid the sight of; let them be as ready and familiar to you, and have your eye as constantly upon them, as if they were written upon your door-posts, and could not be overlooked either when you go out or when you come in." Thus we must lay God's judgments before us, having a constant regard to them, as the guide of our way, as the rule of our work, Psa 119:30. 3. Let our tongues be employed about the word of God. Let it be the subject of our familiar discourse, wherever we are; especially with our children, who must be taught the service of God, as the one thing needful, much more needful than either the rules of decency or the calling they must live by in this world. Great care and pains must be taken to acquaint children betimes, and to affect them, with the word of God and the wondrous things of his law. Nor will any thing contribute more to the prosperity and perpetuity of religion in a nation than the good education of children: if the seed be holy, it is the substance of a land.
II. He repeats the assurances he had before given them, in God's name, of prosperity and success if they were obedient. 1. They should have a happy settlement, Deu 11:21. Their days should be multiplied; and, when they were fulfilled, the days of their children likewise should be many, as the days of heaven, that is, Canaan should be sure to them and their heirs for ever, as long as the world stands, if they did not by their own sin throw themselves out of it. 2. It should not be in the power of their enemies to give them any disturbance, nor make them upon any account uneasy. "If you will keep God's commandments, and be careful to do your duty (Deu 11:22), God will not only crown the labours of the husbandman with plenty of the fruits of the earth, but he will own and succeed the more glorious undertakings of the men of war. Victory shall attend your arms; which way soever they turn, God will drive out these nations, and put you in possession of their land," Deu 11:23, Deu 11:24. Their territories should be enlarged to the utmost extent of the promise, Gen 15:18. And all their neighbours should stand in awe of them, Deu 11:25. Nothing contributes more to the making of a nation considerable abroad, valuable to its friends and formidable to its enemies, than religion reigning in it; for who can be against those that have God for them? And he is certainly for those that are sincerely for him, Pro 14:34.

Every place wherein the soles of your feet shall tread,.... Meaning in the land of Canaan; though the Jews vainly apply this to every land, and country, and place therein, where any of them come; pleasing themselves with this foolish fancy, that all shall be theirs that the foot of any of them have trod upon, or they have dwelt in; but that it respects only the land of Canaan appears by the following description of it and its boundaries:

from the wilderness; the wilderness of Paran, which lay to the south of it, where Kadesh was, from whence the spies were sent, and was the southern border of it:

and Lebanon; which was a range of mountains to the north of it; and was the northern border of the land:

from the river, the river Euphrates; which was the eastern border of it, when it was carried to its utmost extent, as in the days of Solomon, Kg1 4:21.

even unto the uttermost sea shall your coast be: the Mediterranean sea, which was the western border of the land of Canaan, or "the hinder sea", and so it is called Zac 14:8, it lay at the back of them; for if a man stands with his face to the east, the south will be on his right hand, and the north on his left, and the west will be behind him, or at the back of him.

lay up these my words in your heart and in your soul, and bind them--(See on Deu 6:1).