“Great and marvelous are your deeds, Lord God Almighty. Just and true are your ways, King of the nations” (15:3). John saw God’s people singing “the song of God’s servant Moses and of the Lamb” (3), echoing the psalms. The same God who brought Israel out of Egypt under Moses’ leadership is the One who rescued “the nations” from sin and death through Christ. From the Temple in heaven (5), God will keep faithfully judging, saving, and working out His purposes until all is “completed” (1).

“All nations will come and worship before you, for your righteous acts have been revealed” (15:4). Through His righteous acts revealed in Christ, the King of nations continues to call all people to Himself, until He returns in glory.