Psalms 150 - Dummelow's Commentary on the Bible

Firmament of his power] the spreading roof of the sky which His power has made.

This is 'the grand Finale of the spiritual concert,' and worthily closes not only this little Hallelujah group, but the whole Psalter.

Trumpet] i.e. Shopher, a kind of horn.

Psaltery] i.e. Nebhel, a species of harp, or guitar, or lyre, with a bulging resonance box at one end. Harp] i.e. Kinnor, the most ancient form of harp; a lyre.

Timbrel] i.e. Toph, a circlet of wood covered with skin and ornamented with brass bells; tambourine.

Stringed instruments] i.e. Minnim, properly, 'strings,' i.e. of a harp. Organs] RV 'the pipe,' i.e. Ugabh, perhaps a Pan's pipe: cp. Genesis 4:21.

Cymbals] i.e. Tseltselim, evidently of two kinds.' High sounding] cp. 1 Corinthians 13:1.

6. The climax is reached. 'Let every thing that hath breath praise the Lord. Hallelujah.'