The thought of Proverbs 3:3 is carried step further. No outward charm, but the law of obedience, shall give safety to the traveler, when he sleeps or when he wakes.

Bind them continually upon thine heart - See on Proverbs 3:3 (note). And see a similar command, to which this is an allusion, Deuteronomy 6:6-8 (note).

Bind them continually upon thine heart,.... Not upon the head or arm, as the words of the law were to be bound, Deuteronomy 6:3; to which there seems to be an allusion; and which may confirm the sense of the words given, that this respects the law of God itself, and the precepts of it, instructed in by parents; but they should be bound upon the heart, and have an abiding place in the understanding, affections, memory, and will;

and tie them about thy neck; as an ornament, instead of a necklace of pearl, or chains of gold; they should be so far from being thought burdensome and troublesome, that they should be reckoned comely and graceful; see Proverbs 1:9.

Bind them continually upon thine {i} heart, and tie them about thy neck.

(i) Pr 3:3.

6:21 Bind them - Constantly remember, and duly consider them.

6:20-35 The word of God has something to say to us upon all occasions. Let not faithful reproofs ever make us uneasy. When we consider how much this sin abounds, how heinous adultery is in its own nature, of what evil consequence it is, and how certainly it destroys the spiritual life in the soul, we shall not wonder that the cautions against it are so often repeated. Let us notice the subjects of this chapter. Let us remember Him who willingly became our Surety, when we were strangers and enemies. And shall Christians, who have such prospects, motives, and examples, be slothful and careless? Shall we neglect what is pleasing to God, and what he will graciously reward? May we closely watch every sense by which poison can enter our minds or affections.