The apostle John informs the seven churches who the Revelation of Jesus Christ is from:
1. God (Yahweh): "Him who is and who was and who is to come"
God will either speak to directly to John or indirectly through angels.
2. The Holy Spirit: "the seven Spirits who are before His throne" (Rev 4:5).
A detailed description of the seven Spirits of God can be seen in Zechariah 4:1-10.
John would be in the Holy Spirit (Rev 1:10;
2:7; 4:2), or records directly
what the Holy Spirit says (Rev 14:13), or is carried away in the Spirit
(Rev 17:3; 21:10).
3. Jesus Christ: "the faithful witness, the firstborn of the dead, and the ruler of the
kings of the earth To Him who loves us and released us from our sins by His blood" (Rev 1:5).
The Revelation of Jesus Christ is from the triune God.