20 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 assemblies. The seven lampstands are seven assemblies.
seven stars are angels – angels are called stars in the Book of Revelation, and throughout the Bible.
seven lampstands are seven churches – from Zechariah 4, the lampstands in Zechariah are churches, this helps us understand that the first 6 Chapters of Zechariah are a prophecy of the future covenant.