Here we have the psalmist,

I.Longing for help from heaven: My soul faints; my eyes fail. He longs for the salvation of the Lord and for his word, that is, salvation according to the word. He is not thus eager for the creatures of fancy, but for the objects of faith, salvation from the present calamities under which he was groaning and the doubts and fears which he was oppressed with. It may be understood of the coming of the Messiah, and so he speaks in the name of the Old Testament church; the souls of the faithful even fainted to see that salvation of which the prophets testified. (Pe1 1:10); their eyes failed for it. Abraham saw it at a distance, and so did others, but at such a distance that it put their eyes to the stretch and they could not stedfastly see it. David was now under prevailing dejections, and, having been long so, his eyes cried our, "When wilt thou comfort me? Comfort me with thy salvation, comfort me with thy word." Observe, 1. The salvation and consolation of God's people are secured to them by the word, which will certainly be fulfilled in its season. 2. The promised salvation and comfort may be, and often are, long deferred, so that they are ready to faint and fall in the expectation of them. 3. Though we think the time long ere the promised salvation and comfort come, yet we must still keep our eye upon that salvation, and resolve to take up with nothing short of it. "Thy salvation, thy word, thy comfort, are what my heart is still upon."

II.Waiting for that help, assured that it will come, and tarrying till it come: But I hope in thy word; and but for hope the heart would break. When the eyes fail yet the faith must not; for the vision is for an appointed time, and at the end it shall speak and shall not lie.

All thy commandments are faithful,.... Or, "faithfulness" (x) they are made by a faithful God, who is holy, just, and true; they command faithfulness, sincerity, and uprightness; and require men to love their neighbours as themselves, and to do all they do faithfully, cordially, and affectionately; they are to be done in truth and faithfulness, in charity, out of a pure heart, and faith unfeigned; and therefore to dig pits for men must not be after, but contrary, to the law of God;

they persecute me wrongfully; without a cause, purely out of ill will and for religion's sake; which, as it is an argument with the saints to bear persecution patiently, it is used as an argument with the Lord, to arise and appear on the behalf of his persecuted ones, as follows:

help thou me; against my persecutors, and out of their hands: God is able to help his people; he has promised to do it; it may be expected from him; and he is a present help in time of trouble. This is a suitable petition in the mouths of God's people, and should be a prayer of faith.

(x) "fides", Tigurine version, Piscator; "veritas et fidelitas", Michaelis; so Ainsworth.