Psalm 68:32
"Sing unto God, ye kingdoms of the earth; O sing praises unto the Lord; Selah:"
Cross References (ranked by relevance)
Deuteronomy 32:43
Rejoice, O ye nations, with his people: for he will avenge the blood of his servants, and will render vengeance to his adversaries, and will be merciful unto his land, and to his people.
Revelation 15:4
Who shall not fear thee, O Lord, and glorify thy name? for thou only art holy: for all nations shall come and worship before thee; for thy judgments are made manifest.
Psalm 102:22
When the people are gathered together, and the kingdoms, to serve the LORD.
Psalm 100:1
Make a joyful noise unto the LORD, all ye lands.