Revelation 1:18-20

18and the living one: and I became dead, and behold, I am living to the ages of ages, and have the keys of death and of hades. 19Write therefore what thou hast seen, and the things that are, and the things that are about to be after these. 20The mystery of the seven stars which thou hast seen on my right hand, and the seven golden lamps. — The seven stars are angels of the seven assemblies; and the seven lamps are seven assemblies.