Revelation 3

11 I am coming quickly; hold firmly to what you have, so that no one will take your crown.12 The one who overcomes, I will make him a pillar in the temple of My God, and he will not go out from it anymore; and I will write on him the name of My God, and the name of the city of My God, the new Jerusalem, which comes down out of heaven from My God, and My new name.