Psalms 66:1
1Make a joyful shout to God, all the earth!
Shout to God, all the earth. Wesley: All the earth—all nations. Universal summons opens the song.
Join the earth's shout. Joy to God is not private property of one people; all the earth is addressed.
Calvin: all the earth is called to shout—Gentile inclusion already sounded. Joy is owed to God for His works.
Both traditions share this call to all the earth. The earth's joy is commanded because God's deeds deserve it.