David declared his intent to praise the Lord not only among his own people in Israel, but to sing praises among all the peoples and nations of the world. This is evidence of God’s Spirit at work in David. For it was always God’s intent to bless the whole world through the seed of Abraham. As the Lord said to Abraham, “In your seed all the nations of the earth shall be blessed” (Gen. 22:18).
That “Seed” is Christ Jesus, the Son of David, the Son of God. And the Spirit that worked in David to declare God’s praise among the nations, now works in us, moving us to fulfill Christ’s commission to “make disciples of all nations” (Matt. 28:19).