This is a prophecy concerning the preaching of the Gospel to every creature under the whole heaven wherever the wide earth extends. “Day unto day, (saith David) uttereth the word;” that is, ‘from day to day;’ or, day and night shall the Gospel be propagated by the voice of the apostles and the ministers of the word, farther and farther; and that, not only in Judea but every where in all the earth, and in all languages throughout the world.—And says David, as by the life-giving light of the Sun, all things in nature are illuminated, recreated, and cherished: so this new light, this voice of the Gospel shall illumine the world, and, by communicating the Spirit, shall revive and purify the hearts of men, and shall lift up and comfort distressed consciences. Here also David intimates, that the old law which was the ministration of death was to be done away with; and that the Gospel was to succeed, which should be the ministration of life and of the Spirit; and which should be a word sweet and lovely, illumining the eyes and purifying the heart. This Psalm belongs to the Third Commandment; for it shews us what is the true Sabbath, namely, the day or time, in which the Gospel should be preached throughout the whole world and received by those who should believe it. PSALM XX. _The Church blesseth the King in his exploits.—Her confidence in God’s succour._ To the chief Musician, A Psalm of David. The LORD hear thee in the day of trouble; the name of the God of Jacob defend thee. Send thee help from the sanctuary, and strengthen thee out of Zion. Remember all thy offerings, and accept thy burnt sacrifice. Selah. Grant thee according to thine own heart, and fulfil all thy counsel. We will rejoice in thy salvation, and in the name of our God we will set up _our_ banners: the LORD fulfil all thy petitions. Now know I that the LORD saveth his anointed: he will hear him from his holy heaven with the saving strength of his right hand. Some _trust_ in chariots, and some in horses: but we will remember the name of the LORD our God. They are brought down and fallen; but we are risen and stand upright. Save, LORD: let the king hear us when we call. This is a prayer for kings, rulers, magistrates, and all who sustain that most heavy burthen of governing the state:—that God, in such momentous concerns, to which all human diligence and wisdom are unequal (as even heathen rulers have confessed from their own experience), would stand by magistrates when exposed to the hatred of all, to their secret councils and plans of deceit; and would keep all subjects in their duty, and give his blessing in the preservation of a good and happy constitution, and public peace; especially when Satan with horrible hatred against God and the works of God, is endeavouring to destroy the constitutions of kingdoms, and to confound all things with slaughter and blood-shed.