ISB ~ Revelation 1 v6

kingdom, priests:Believers share in the royal priesthood of Christ. This common priesthood of the faithful differs in kind and not simply in degree from the ministerial priesthood of the Church (CCC 1546). See note on 1 Pet 2:9.

• Since the King of kings and Priest of heaven united us with his body when he offered himself for us, there is not one among the saints who does not possess the office of priesthood, for each is a member of the eternal Priest (St. Bede, Explanation of the Apocalypse 1, 6).