All nations whom You have made shall come and worship before You, O Lord… Psa. 86:9
In the similar context Romans 14:11 says: "For it is written, [As] I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God."
David recognized that God was Creator and master over all nations, not merely Israel. In a day when most gods were considered to be only national or regional deities, David knew that his God – the living God, the true God – was different. The Creator will be recognized and worshipped by His creation.
May we gather at His presence today and worship him with truth and spirit.