(8) And thou shalt bind them . . .--From this precept the Jews derive the use of the Tephillin, the portions of the Law which they bind upon the head or arm when about to pray.

Verse 8. - The words of God were to be bound for a sign [a memorial or directory] upon thine hand, the instrument of acting, and to be as frontlets [fillets or bands] between thine eyes, the organs of direction in walking or moving, and so on the forehead, the chamber of thought and purpose; and they were to inscribe them on the posts of their houses, and on their gates. The purport of this is that they were constantly and everywhere to have these commandments of the Lord in view and in mind, so as to undeviatingly observe them. It seems, however, to have been a custom widely prevalent among the ancient Eastern peoples to carry about their persons slips of parchment or some other material, on which were written sentences of moral or religious import; and such sentences they were also wont to inscribe on conspicuous places of their dwellings; usages still to be found among the Moslems (see Wilkinson, 'Ancient Egyptians,' 3:364; Lane, 'Modern Egypt,' 1:358; Russell, 'Nat. Hist. of Aleppo;' Thomson, 'Land and the Book,' 1:216), and the latter of which was not altogether unknown among Western nations (cf. Virgil, 'Georg.' lit. 26, etc.), of which traces may still be seen in Switzerland, Germany, and on old houses in both England and Scotland. This custom originated, probably, in a desire to have the sentiments inscribed always in mind; but for the most part these inscriptions came to be regarded as amulets or charms, the presence of which on the person or the house was a safeguard against evil influences, especially such as were supernatural. By the Jews this custom was followed; and they regarded it as authorized by the injunction of Moses in this passage. Taking his words literally, they had their tôtâphoth and their mezuzah, the former of which - the phylacteries of the New Testament - were strips of parchment, on which passages of the Law (Exodus 13:2-10, 11-17; Deuteronomy 6:4-10, 13-22) were written, and these, enclosed in a box, were bound on the forehead and left wrist, and worn at prayers by the worshippers; the latter a slip of parchment, on which were written certain passages of Scripture (vers. 4-9; Deuteronomy 11:13-21), and which, enclosed in a reed or cylinder, was fixed on the right-hand doorpost of every room in the house (see arts. 'Mezuzah' and 'Phylacteries' in Kitto's 'Biblical Cyclopedia,' 3rd edit.).

6:6-16 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.And thou shalt bind them for a sign upon thine hand,.... As a man ties anything to his hand for a token, that he may remember somewhat he is desirous of; though the Jews understand this literally, of binding a scroll of parchment, with this section and others written in it, upon their left hand, as the Targum of Jonathan here interprets the hand:

and they shall be as frontlets between thine eyes; and which the same Targum interprets of the Tephilim, or phylacteries, which the Jews wear upon their foreheads, and on their arms, and so Jarchi; of which See Gill on Matthew 23:5.