1.
Praise ye the LORD. Praise God in his sanctuary: praise him in the firmament of his power.
In his sanctuary; in his temple, where this work was to be performed constantly and solemnly. Or, who dwelleth in his sanctuary. So it describeth and limiteth the object of their praises. Or, for (as this particle is used in the next verse) his sanctuary, for this great favour of placing his sanctuary and dwelling-place amongst men.
In the firmament of his power; in his heavenly mansion, there let the blessed angels praise him. Or, who dwelleth in the firmament, or spreading forth of his power, to wit, in the heavens, which were stretched out by his great power, and in which are the most glorious testimonies of his infinite power. Or, for the firmament, &c.; for that glorious and astonishing piece of his workmanship.
2.
Praise him for his mighty acts: praise him according to his excellent greatness.
As his infinite majesty deserves to be praised.
3.
Praise him with the sound of the trumpet: praise him with the psaltery and harp.
4.
Praise him with the timbrel and dance: praise him with stringed instruments and organs.
5.
Praise him upon the loud cymbals: praise him upon the high sounding cymbals.
6.
Let every thing that hath breath praise the LORD. Praise ye the LORD.
Every thing that hath breath; every living creature in heaven and in earth, Revelation 5:13, according to their several capabilities, some objectively, others actively, as was noted before.