Jamieson, Fausset and Brown on Psalms 96:1-3

PSALM 96

Psa 96:1-13. The substance of this Psalm, and portions of the ninety-seventh, ninety-eighth, and hundredth, are found in 1Ch 16:7-36, which was used by David's directions in the dedication of the tabernacle on Mount Zion. The dispensation of the Messiah was typified by that event, involving, as it did, a more permanent seat of worship, and the introduction of additional and more spiritual services. Hence the language of these Psalms may be regarded as having a higher import than that pertinent to the occasion on which it was thus publicly used.

1-3. All nations are invited to unite in this most joyful praise.

new song--literally, "fresh," or new mercies (Psa 33:3; 40:3).