Revelation 1:12

“Therefore write the things which you have seen, and the things which are, and the things which will take place after these things.

“As for the mystery of the seven stars which you saw in My right hand, and the seven golden lampstands: the seven stars are the angels of the seven churches, and the seven lampstands are the seven churches.

“To the angel of the church in Ephesus write: This is what the One who holds the seven stars in His right hand, the One who walks among the seven golden lampstands, says:

After these things I looked, and behold, a door standing open in heaven, and the first voice which I had heard, like the sound of a trumpet speaking with me, said, “Come up here, and I will show you what must take place after these things.”