It was the laudable practice of the pious Jews, and, though not expressly appointed, yet allowed and accepted, when they had built a new house, to dedicate it to God, Deut. 20:5. David did so when his house was built, and he took possession of it (2 Sam. 5:11); for royal palaces do as much need God’s protection, and are as much bound to be at his service, as ordinary houses. Note, The houses we dwell in should, at our first entrance upon them, be dedicated to God, as little sanctuaries. We must solemnly commit ourselves, our families, and all our family affairs, to God’s guidance and care, must pray for his presence and blessing, must devote ourselves and all ours to his glory, and must resolve both that we put away iniquity far from our tabernacles and that we and our houses will serve the Lord both in the duties of family worship and in all instances of gospel obedience. Some conjecture that this psalm was sung at the re-dedication of David’s house, after he had been driven out of it by Absalom, who had defiled it with his incest, and that it is a thanksgiving for the crushing of that dangerous rebellion. In these verses,

I. David does himself give God thanks for the great deliverances he had wrought for him (Ps. 30:1): “I will extol thee, O Lord! I will exalt thy name, will praise thee as one high and lifted up, I will do what I can to advance the interest of thy kingdom among men. I will extol thee, for thou hast lifted me up, not only up out of the pit in which I was sinking, but up to the throne of Israel.” He raiseth up the poor out of the dust. In consideration of the great things God has done to exalt us, both by his providence and by his grace, we are bound, in gratitude, to do all we can to extol his name, though the most we can do is but little. Three thing magnify David’s deliverance:—1. That it was the defeat of his enemies. They were not suffered to triumph over him, as they would have done (though it is a barbarous thing) if he had died of this sickness or perished in this distress: see Ps. 41:11. 2. That it was an answer to his prayers (Ps. 30:2): I cried unto thee. All the expressions of the sense we have of our troubles should be directed to God, and every cry be a cry to him; and giving way, in this manner, to our grief, will ease a burdened spirit. “I cried to thee, and thou hast not only heard me, but healed me, healed the distempered body, healed the disturbed and disquieted mind, healed the disordered distracted affairs of the kingdom.” This is what God glories in, I am the Lord that healeth thee (Exod. 15:26), and we must give him the glory of it. 3. That it was the saving of his life; for he was brought to the last extremity, dropping into the grave, and ready to go down into the pit, and yet rescued and kept alive, Ps. 30:3. The more imminent our dangers have been, the more eminent our deliverances have been, the more comfortable are they to ourselves and the more illustrious proofs of the power and goodness of God. A life from the dead ought to be spent in extolling the God of our life.

II. He calls upon others to join with him in praise, not only for the particular favours God has bestowed upon him, but for the general tokens of his good-will to all his saints (Ps. 30:4): Sing unto the Lord, O you saints of his! All that are truly saints he owns for his. There is a remnant of such in this world, and from them it is expected that they sing unto him; for they are created and sanctified, made and made saints, that they may be to him for a name and a praise. His saints in heaven sing to him; why should not those on earth be doing the same work, as well as they can, in concert with them? 1. They believe him to be a God of unspotted purity; and therefore let them sing to him; “Let them give thanks at the remembrance of his holiness; let them praise his holy name, for holiness is his memorial throughout all generations.” God is a holy God; his holiness is his glory; that is the attribute which the holy angels, in their praises, fasten most upon, Isa. 6:3; Rev. 4:8. We ought to be much in the mention and remembrance of God’s holiness. It is a matter of joy to the saints that God is a holy God; for then they hope he will make them holy, more holy. None of all God’s perfections carries in it more terror to the wicked, nor more comfort to the godly, than his holiness. It is a good sign that we are in some measure partakers of his holiness if we can heartily rejoice and give thanks at the remembrance of it. 2. They have experienced him to be a God gracious and merciful; and therefore let them sing to him. (1.) We have found his frowns very short. Though we have deserved that they should be everlasting, and that he should be angry with us till he had consumed us, and should never be reconciled, yet his anger endureth but for a moment, Ps. 30:5. When we offend him he is angry; but, as he is slow to anger and not soon provoked, so when he is angry, upon our repentance and humiliation his anger is soon turned away and he is willing to be at peace with us. If he hide his face from his own children, and suspend the wonted tokens of his favour, it is but in a little wrath, and for a small moment; but he will gather them with everlasting kindness, Isa. 54:7, 8. If weeping endureth for a night, and it be a wearisome night, yet as sure as the light of the morning returns after the darkness of the night, so sure will joy and comfort return in a short time, in due time, to the people of God; for the covenant of grace is as firm as the covenant of the day. This word has often been fulfilled to us in the letter. Weeping has endured for a night, but the grief has been soon over and the grievance gone. Observe, As long as God’s anger continues so long the saints’ weeping continues; but, if that be but for a moment, the affliction is but for a moment, and when the light of God’s countenance is restored the affliction is easily pronounced light and momentary. (2.) We have found his smiles very sweet; In his favour is life, that is, all good. The return of his favour to an afflicted soul is as life from the dead; nothing can be more reviving. Our happiness is bound up in God’s favour; if we have that, we have enough, whatever else we want. It is the life of the soul, it is spiritual life, the earnest of life eternal.