The Lord shall reign for ever - See the notes at Psalms 10:16 : “The Lord is King forever and ever” Compare Exodus 15:18.
Even thy God, O Zion, unto all generations - As long as the world shall endure. There shall be no change of dynasty as there is in human governments; but the same King shall reign from age to age.
Praise ye the Lord - Hallelu-jah. The psalm closes as it commences. It is a call on all persons to unite in the praise of Yahweh.