Psalm 117 is a psalm of praise that invites the gentiles to join in praising God. Christian’s view this as a fulfillment of God’s promise of mercy to the gentiles, pointing to God’s promise that all nations would be blessed in the seed of Abraham, who they believe is Jesus Christ, as described in the Letter to the Galatians. If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise(Galatians 3:29 NIV).The psalmist specifically commands Gentiles to also praise God, indicating that God’s salvation goes beyond the borders of Israel. This is the shortest psalm in the Book of Psalms. This Psalm is also the shortest chapter in the whole Bible. It is the 595th of the 1,189 chapters of the King James Version of the Bible, making it the middle chapter of this version.
It reads in Psalm 117:1-2 NIV
Praise the Lord, all you nations; extol him, all you peoples. For great is his love toward us, and the faithfulness of the Lord endures forever. Praise the Lord.