The very real future places of a lake of fire opening up near Jerusalem and a city called the new Jerusalem from heaven are described similarly by Enoch in Enoch 89 and God via Jesus via John in Revelation 21. The heavenly city mentioned in both of the above passages is a future place concurrent with a future 'hell' and the criteria for entry into this future city from heaven is to 'overcome' which presumably means to overcome all those things that get people designated to be thrown into that future hell. Overcome. Be victorious over such things as sorcery and deception both these things in yourself and the same things in others.
