See here how David was affected towards the word of God. 1. He admired it, as most excellent in itself: Thy testimonies are wonderful. The word of God gives us admirable discoveries of God, and Christ, and another world; admirable proofs of divine love and grace. The majesty of the style, the purity of the matter, the harmony of the parts, are all wonderful. Its effects upon the consciences of men, both for conviction and comfort, are wonderful; and it is a sign that we are not acquainted with God's testimonies, or do not understand them, if we do not admire them. 2. He adhered to it as of constant use to him: "Therefore doth my soul keep them, as a treasure of inestimable value, which I cannot be without." We do not keep them to any purpose unless our souls keep them. There they must be deposited, as the tables of testimony in the ark, there they must have the innermost and uppermost place. Those that see God's word to be admirable will prize it highly and preserve it carefully, as that which they promise themselves great things from.

Order my steps in thy word,.... Or, "by thy word" (s), or "according" to it. Which is the rule of practice and action, as well as of faith; and happy are they who walk according to the directions of it; but it is not in the power of man to order and direct his steps: this is done by the Lord; and such who acknowledge him in their ways, and apply to him for direction, are and shall be thus favoured by him; see Jer 10:23;

and let not any iniquity have dominion over me; not only greater sins or presumptuous ones, very gross iniquities, as in Psa 19:13; but lesser ones, even the least of them. It is a sad thing to be enslaved to any lust or sin, be it what it will: sin reigns over wicked men even unto death; and it oftentimes has great power over good men, puts them upon doing that which is evil, and hinders them from doing that which is good; it carries them captive, and threatens to have the ascendant over them, and rule in them, which they deprecate; and such a prayer may be the prayer of faith, since it is promised "sin shall not have the dominion over you", Rom 6:14. Kimchi interprets this of the evil imagination or corruption of nature; R. Moses understands it of a wicked man; and so the Syriac version.

(s) "eloquio tuo", Tigurine version; "secundum eloquium tuum", Musculus.