*Minor differences ignored. Grouped by changes, with first version listed as example.
And these words. In these four next verses God again commands (as before) the study of His Law. And first, indeed, He would have it implanted in their hearts, lest forgetfulness of it should ever steal over them; and by the word "heart" He designates the memory and other faculties of the mind; as though He had said that this was so great a treasure, that there was good cause why they should hide it in their hearts, or so fix this doctrine deeply in their minds that it should never escape. Afterwards He enjoins that constant conversation should be held about it with their children, in order that fathers should diligently attend and apply themselves to the duty of instruction. The word snn [1] shanan, which Moses uses, means properly "to whet." Commentators think that it is employed metaphorically for "to reiterate," or "to repeat constantly," because, when the heavenly doctrine is inculcated, it will scarcely even thus be duly impressed on their hearts; but, since it is here used in the conjugation Piel, its signification may be transitive, viz., that they should cause it to penetrate their minds, as if they should prick them with the point of a sword; for the other translation does not seem consistent. But it is sufficient for me to state my opinion, lest any should be offended by its novelty. Lastly, he exhorts them to exercise themselves in its meditation both publicly and privately, in order to stimulate their want of energy. But, although he may seem to speak hyperbolically, yet if any one will carefully consider how slow and careless men are in learning, and how forgetful they are when they seem to have made some progress, he will readily acknowledge that Moses does not urge them so strongly on insufficient grounds, but that it was highly necessary for him to be thus rigid in exacting their attention. For this reason the Prophet in Psalm 1:2, pronounces them to be blessed who meditate in God's law "day and night." He leaves, then, no portion of time unoccupied with meditation on the Law; whether they are at home, or abroad, or when they retire to rest, or when they rise in the morning. To this precept David appears to allude in Psalm 119:62, where he says, "At midnight I will rise to give thanks unto thee because of thy righteous judgments;" and again, Psalm 119:148, "Mine eyes prevent the night-watches, that I might meditate in thy word." But still, by the expression "talk of them," Moses does not urge the people to empty talkativeness, to which many are too much inclined, but he would have them severally thus establish themselves and be teachers of each other. He enumerates these various engagements, lest that change of occupation by which the mind is wont to be distracted should withdraw the godly from the right path, as though he commanded them to make this their chief aim in whatever business they might be engaged. For the same reason he desires bracelets and frontlets to be made of the precepts of the Law, contrasting doubtless this spiritual ornament with chains of gold, as much as to say that they would more properly take delight in the pious recollection of the Law, than in those trifling ornaments which attract men's senses. The Jews understanding this literally, accounted this external ostentation a mark of holiness, so as to think that they had almost done all they needed, when they wore the Law on their arms and foreheads. Thence their mistaken zeal proceeded still further, so that, as each desired to be thought better than others, they widened their phylacteries in proportion, for so they denominated the borders of their garments, on which were written certain sentences of the Law, as safeguards. This error our Lord severely reproves in the Scribes and Pharisees, (Matthew 23:5,) because it was a mere mockery of this admonition, and a profanation of its doctrine. The intention of God sufficiently appears in the passage from Exodus, which I have subjoined, and in which they are simply commanded to be diligent in keeping the Law. But there is good reason why diligence should be required, not only on account of the matter being highly important, but because, through our vanity, we are apt to relax our exertions, unless our slowness of heart is stimulated.
1 - Margin of A.V., to whet, or sharpen. -- W.
Shall be in thine heart - For where else can love be? If it be not in the heart, it exists not. And if these words be not in the heart - if they are not esteemed, prized, and received as a high and most glorious privilege, what hope is there that this love shall ever reign there?
And these words, which I command thee this day,.... To hearken to, observe, and take notice of, that God is one, and is to be loved in the strongest manner that possibly can be:
shall be in thine heart; on the table of the heart, as the Targum of Jonathan; see 2-Corinthians 3:3, be cordially received, have a place in the affections of the heart, and be retained in mind and memory.
Here are means for maintaining and keeping up religion in our hearts and houses. 1. Meditation. God's words must be laid up in our hearts, that our thoughts may be daily employed about them. 2. The religious education of children. Often repeat these things to them. Be careful and exact in teaching thy children. Teach these truths to all who are any way under thy care. 3. Pious discourse. Thou shalt talk of these things with due reverence and seriousness, for the benefit not only of thy children, but of thy servants, thy friends and companions. Take all occasions to discourse with those about thee, not of matters of doubtful disputation, but of the plain truths and laws of God, and the things that belong to our peace. 4. Frequent reading of the word. God appointed them to write sentences of the law upon their walls, and in scrolls of parchment to be worn about their wrists. This seems to have been binding in the letter of it to the Jews, as it is to us in the intent of it; which is, that we should by all means make the word of God familiar to us; that we may have it ready to use upon all occasions, to restrain us from sin, and direct us in duty. We must never be ashamed to own our religion, nor to own ourselves under its check and government. Here is a caution not to forget God in a day of prosperity and plenty. When they came easily by the gift, they would be apt to grow secure, and unmindful of the Giver. Therefore be careful, when thou liest safe and soft, lest thou forget the Lord. When the world smiles, we are apt to make court to it, and expect our happiness in it, and so we forget Him who is our only portion and rest. There is need of great care and caution at such a time. Then beware; being warned of your danger, stand upon your guard. Thou shalt not tempt the Lord thy God; neither by despairing of his power and goodness, while we keep in the way of our duty; nor by presuming upon it, when we turn aside out of that way.
*More commentary available at chapter level.