Verse 31 indicates that nobles will come out of Egypt to visit Jerusalem, the city of God, and that Cush (today's Ethiopia) will quickly stretch out its hand to God.
The scenery portrayed above will consummate in the coming age of restoration (Matt. 19:28), in which all the earth will come to Jerusalem to worship God and to receive instruction and enlightenment (Isa. 2:2-3; Zech. 14:16-17).
In verses 32 through 34 the kingdoms of the earth are charged to sings psalms in the restoration to God, who rides upon the heavens, the ancient heavens, and utters His voice, a mighty voice (thunder). They are charged also to ascribe strength to God, whose excellence (glory) is over Israel and whose strength is in the skies.
"You are awesome, O God, from Your sanctuaries./The God of Israel, He gives strength and power to the people./Blessed be God!" (v. 35). In this concluding verse the psalmist praises God and blesses Him.