The redeemed will be transformed with God’s name on their foreheads and will live in eternal light

Revelation 22:3-5

There will be no curse any more. The throne of God and of the Lamb will be in it, and his servants will serve him. They will see his face, and his name will be on their foreheads. There will be no night, and they need no lamp light or sun light; for the Lord God will illuminate them. They will reign forever and ever.