This Ps., though akin to Psalms 46, 48, is less definitely historical, and simply summons the earth to join in a chorus of praise to God as the victorious King, not only of Israel, but of all the nations of the world.
Related Commentaries of Psalms 47:1
Psalms 47:1-9
1 O clap your hands, all ye people; shout unto God with the voice of triumph.
2 For the LORD most high is terrible; he is a great King over all the earth.
3 He shall subdue the people under us, and the nations under our feet.
4 He shall choose our inheritance for us, the excellency of Jacob whom he loved. Selah.
5 God is gone up with a shout, the LORD with the sound of a trumpet.
6 Sing praises to God, sing praises: sing praises unto our King, sing praises.
7 For God is the King of all the earth: sing ye praises with understanding.
8 God reigneth over the heathen: God sitteth upon the throne of his holiness.
9 The princesa of the people are gathered together, even the people of the God of Abraham: for the shields of the earth belong unto God: he is greatly exalted.