What does the Bible say about who enters the Holy City?

The Bible explicitly indicates that entry into the Holy City, the New Jerusalem, is restricted to individuals whose names are inscribed in the Lamb's Book of Life. Revelation 21:27 states that nothing impure will enter it, reinforcing the holiness required for entry. This underscores a key theological principle: only those who have received divine righteousness through Christ can be deemed worthy to dwell in God's presence eternally. The necessity of holiness emphasizes God's justice, where only the unblemished may enter heaven, as sin cannot and will not be permitted in His presence.