Jesus mentioned that he has the Seven Spirits of God (Revelation 3:1). Some have thought these seven spirits are the Holy Spirit. Nevertheless, none of the writers of the New Testament ever mention that the Holy Spirit sends grace to believers or even sends his greeting to them. Why would he, if he indwells the believer? Why would John need to bring a message of grace from the Holy Spirit (Revelation 1:4), if, indeed, the Holy Spirit indwells the believer? Therefore, I don’t believe the Seven Spirits of God could represent the Holy Spirit.
Others believe the Seven Spirits are the seven angels (i.e. angelic spirits) who stand before the throne of God (Revelation 8:2). However, this doesn’t seem plausible either; first of all, because no angel is called a spirit in the Apocalypse, so why would John intend for us to understand he means angelic spirits, when he mentions ‘seven spirits’? Moreover, what angelic spirit gives or sends grace to believers (Revelation 1:4)? Such a thing is never mentioned in the Bible. So, it doesn’t appear there is any Biblical support for the Seven Spirits of God being angels.
Still others believe the Seven Spirits are the seven messengers or leaders of the seven churches. However, although the seven stars are the seven angels or messengers of the seven churches (Revelation 1:16, 20; 2:1 etc), and the seven lampstands are the seven churches (Revelation 1:12-13, 20; 2:1 etc.), the Seven Spirits of God are not specifically connected to them. Therefore, it would be an assumption without Biblical support to say they are the seven messengers (leaders) of the seven churches. Additionally, if the Seven Spirits of God were, indeed the ‘messengers’ of the churches, why would John need to send a letter from Jesus to them, if they stand before the throne of God (cp. Revelation 4:5)?
Jesus began his letter to Sardis by saying, “These things says he who has the Seven Spirits of God…” John began this book by saying , “John to the seven churches, which are in Asia. Grace be unto you and peace from him, which is, and which was, and which is to come; and from the Seven Spirits, which are before his throne” (Revelation 1:4). Later in chapter five John was shown a Lamb who had been slain, and the Lamb had seven horns and seven eyes, which are the Seven Spirits of God, and they are sent forth into all the earth (Revelation 5:6). Additionally, we are told that the Seven Lamps that burn before the throne of God are the Seven Spirits of God (Revelation 4:5). So, the Seven Lamps before the throne, and the Seven Spirits of God and the Seven Eyes of the Lamb represent the same thing.
It may be interesting to point out that there were seven lamps made for the golden candlestick that stood in the Holy Place of the Tabernacle of God to give light throughout the room (Exodus 25:37; 37:3; Numbers 8:2). However, John said Jesus stood in the midst of seven golden candlesticks (Revelation 1:12-13), which were the seven churches of Asia (Revelation 1:20). Thus, I believe it can be safely said that the seven golden candlesticks (the churches of Asia) stand before the throne of God in the Holy Place of the Temple, just as the single candlestick with its seven lamps stood in the Holy Place of the Tabernacle before the veil that hid the Mercy Seat (viz. Exodus 25:37; 37:3; Numbers 8:2).
Therefore, if we can say that the light of the body is the eye (Matthew 6:22), and the body in question is the Body of Christ, or the Church (1Corinthians 12:27), then strictly speaking, the eye or Light of the Body of Christ would be Jesus, himself (John 1:9; 1Corinthians 4:5; 1Timothy 6:16; cp. Job 3:23; 12:25; John 11:9-10). However, I believe the sense here is how the Lord brings light to his Body. How did believers in Asia, or anywhere else in the world for that matter, come to know God and understand the truth?
The Seven Eyes of the Lamb or the Seven Spirits of God are “sent forth into all the earth” (Revelation 5:6). If we compare this with Matthew 28:18-20, we understand that Jesus sent forth his disciples into all the earth. What I believe Jesus is pointing to in Revelation 3:1 is the seven authors of the New Covenant Scriptures. By these Scriptures, written by these authors, we see the Light–Jesus / God, who is the Light (1John 1:5), and, through these same authors, we are able to understand the truth written in the Old Covenant Scriptures. The New Covenant is the Old Covenant fulfilled and come to light, and this was done through seven men: Matthew, Peter (author of his two epistles and of Mark’s Gospel), Luke, the writer of the Gospel of John and his three epistles, Paul, James and Jude. The light of the Body of Christ comes from Jesus through these seven men.