How does the story of David's conquest relate to the Christian faith?

David's conquest of Jerusalem ultimately serves as an archetype for Christ’s victory over sin and His establishment of an everlasting kingdom. David’s successful entry, despite the challenges posed by the Jebusites, portrays how Christ, too, triumphs over obstacles that threaten our salvation. Through His death and resurrection, Christ defeats sin and secures our entrance into the New Jerusalem, which symbolizes our eternal dwelling with Him. This concept is affirmed in Revelation 21:2, where the New Jerusalem descends from heaven, representing the culmination of God’s redemptive plan, drawing a direct line from David's historical actions to the spiritual realities fulfilled in Christ.