The Jesus of Revelation 21 is "making all things new," that is, re-newing all things to their original intent in a way which far surpasses that which has come before. He is making all things kainos.
William Shakespeare, in ‘Hamlet’ describes death as “the undiscovered country” from which “no man returns”.
And if we believe in God, there is only one thing we know for sure – if God is here, he is also th...