Here, 1. David prays for sustaining grace; for this grace sufficient he besought the Lord twice: Uphold me; and again, Hold thou me up. He sees himself not only unable to go on in his duty by any strength of his own, but in danger of falling into sin unless he was prevented by divine grace; and therefore he is thus earnest for that grace to uphold him in his integrity (Psa 41:12), to keep him from falling and to keep him from tiring, that he might neither turn aside to evil-doing nor be weary of well-doing. We stand no longer than God holds us and go no further than he carries us. 2. He pleads earnestly for this grace. (1.) He pleads the promise of God, his dependence upon the promise, and his expectation from it: "Uphold me, according to thy word, which word I hope in; and, if it be not performed, I shall be made ashamed of my hope, and be called a fool for my credulity." But those that hope in God's word may be sure that the word will not fail them, and therefore their hope will not make them ashamed. (2.) He pleads the great need he had of God's grace and the great advantage it would be of to him: Uphold me, that I may live, intimating that he could not live without the grace of God; he should fall into sin, into death, into hell, if God did not hold him up; but, supported by his hand, he shall live; his spiritual life shall be maintained and be an earnest of eternal life. Hold me up, and I shall be safe, out of danger and out of the fear of danger. Our holy security is grounded on divine supports. (3.) He pleads his resolution, in the strength of this grace, to proceed in his duty: "Hold me up, and then I will have respect unto thy statutes continually and never turn my eyes or feet aside from them." I will employ myself (so some), I will delight myself (so others) in thy statutes. If God's right hand uphold us, we must, in his strength, go on in our duty both with diligence and pleasure.

My flesh trembleth for fear of thee,.... Not for fear of the wrath of God coming down upon himself, nor for fear of eternal damnation; but for fear of what was coming upon the wicked, for their sins and transgressions. The word (n) used signifies such a dread and horror, which seizes a man to such a degree, that it makes the hair of his flesh to stand up; as Jarchi and Kimchi observe; see Psa 119:53, Job 4:14;

and I am afraid of thy judgments; not of their coming down upon him, but upon the wicked; the thought of which is more awful to good men than to the wicked themselves; and especially when under any darkness, doubts, and fears; lest, being conscious to themselves of their own weakness, they should be left to join with the wicked in their sins, and so be partakers of their plagues.

(n) Symmachus in Drusius; "horripilavit", Cajetanus apud Gejerum.