Angels of the Seven Churches- Revelation 2-3

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 which you saw are the seven churches (Rev. 1:20).

Revelation 2:

To the angel of the church of Ephesus write, The Loveless Church: Nevertheless, I have this against you, that you have left your first love. Remember therefore from where you have fallen repent and do the first works, or else I will come to you quickly and remove your lampstand from its place -unless you repent

Revelation 3:

And to the angel of the church in Sardis write, The Dead Church: Remember therefore how you have received and heard; hold fast and repent, therefore, if you do not watch, I will come upon you as a thief, and you will not know what hour I will come upon you. You have a few names even in Sardis who have not defiled their garments; and they shall walk with Me in white, for they are worthy. He who comes shall be clothed in white garments, and I will not blot out his name from the Book of Life, but I will confess his name before My Father and before His angels.