As for the mystery of the seven stars that 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.
We have now come to that glorious vision which the apostle had of the Lord Jesus Christ, when he came to deliver this revelation to him, where observe, I. The account given of the person who was favoured with this vision. He describes himself, 1. By his present state and condition. He was the brother and companion of these churches in tribulation, and in the kingdom and patience of Christ.
Commenting on Revelation 1:9-20
The mystery of the seven stars which thou sawest in my right hand,.... The sense is, that John was to write the mystery of these stars, or the mystical sense of them: and the seven golden candlesticks; the mystery, or mysterious sense of them also; for the words are in a continued connection with Rev 1:19, and have respect to the following interpretation of them...
Verse 20. The mystery of the seven stars. On the word mystery, . The word means, properly, that which is hidden, obscure, unknown--until it is disclosed by one having the ability to do it, or by the course of events. When disclosed it may be as clear, and as capable of comprehension, as any other truth.