Let your heart hold to all the hope and delight the Lord has given. I believe the Book of Revelation is about the New Jerusalem in contrast to the Old Jerusalem, Babylon, Sodom, “where also their Lord was crucified” (Rev. 11:8). It is the removal of the Old Jerusalem that had killed the prophets and the Lord Jesus (1 Thess. 2:15; Luke 13:34-35; Rev. 1:7).