" The Old Testament allusions frequently presuppose their Old Testament context and a range of connexions between Old Testament texts which are not made explicit but lie beneath the surface of the text of Revelation. If we wonder what the average Christian in the churches of Asia could make of this, we should remember that the strongly Jewish character of most of these churches made the Old Testament much more familiar than it is even to well-educated modern Christians. But we should also remember the circle of Christian prophets in the churches (cf. 22:9, 16) who would probably have studied, interpreted and expounded John’s prophecy with the same kind of learned attention they gave to the Old Testament prophecies. "

― Richard Bauckham , Theology of the Book of Revelation