Make a joyful noise unto the LORD, all ye lands.
Psalms 100:1-5.-Invitation to praise (Psalms 100:1); ground of it: serve Yahweh, because He hath made us, and adopted us as His people by redemption (Psalms 100:2-3). Bless Him for His mercy and truth last forever (Psalms 100:4-5).
Title, A Psalm of praise - rather (le-thodah), 'of thanksgiving,' to accord with the same Hebrew noun and verb, Psalms 100:4, "thanksgiving ... be thankful" - literally, confession; for thanksgiving, in God's case, is simply confessing His infinite excellencies. The praise in His case can never exceed the reality. This psalm closes the Messianic series, Psalms 91:1-16; Psalms 92:1-15; Psalms 93:1-5; Psalms 94:1-23; Psalms 95:1-11; Psalms 96:1-13; Psalms 97:1-12; Psalms 98:1-9; Psalms 99:1-9; Psalms 100:1-5, with exhorting the pagan to submit joyfully to Yahweh as their Maker and redeeming Shepherd. The title implies that this psalm is the lyrical "thanksgiving" for the manifestation of Himself as the coming King, which is set forth in Psalms 99:1-9.
Make a joyful noise unto the Lord, all ye lands - Hebrew, 'all the earth' (Psalms 98:4; Psalms 66:1). The "joyful noise" is the shout of acclamation with which a king is greeted at his accession to the throne. So at Solomon's accession (1 Kings 1:39-40). So at Messiah's coming visibly to reign (Psalms 2:6; Psalms 2:8; Psalms 2:11-12).