The City of God

Psalm 87 presents a vision of heavenly Zion, the eternal city of God, established not by human effort but by divine sovereignty through Christ's victory over sin and death. The psalm reveals that this city, though invisible, is made present on earth through the church, where people from every nation—including former enemies—are welcomed as natural-born citizens by grace. The joy of this reality is expressed in worship, as believers confess that all their spiritual life and sustenance come from God alone, who is the unshakable foundation and source of eternal life. The sermon emphasizes that every baptism and new member is a foretaste of the final gathering when all nations will enter God's presence, and calls the church to live in joyful unity, eager to invite others into this divine city, knowing their names are written in the Lamb's Book of Life.