Revelation 1:4

(2) John to the seven churches which are in Asia: Grace [be] unto you, and peace, (3) from him (c) which is, and which was, and which is to come; and from (4) the (d) seven Spirits which are before his throne;

(2) This is the particular or singular inscription, in which salutation is written to certain churches by name, who represent the catholic church: and the certainty and truth of this is declared, from the author of it, in (Revelation 1:8). (3) That is, from God the Father, eternal, immortal, immutable: wholly unchangeable, John declares in a form of speech which is undeclined. For there is no incongruity in this place, where, of necessity the words must be adapted to the mystery, not the mystery corrupted or impaired by the words.

(c) These three, Is, Was, and Shall be, signify the word Jehovah, which is the proper name for God. (4) That is, from the Holy Spirit who proceeds from the Father and the Son. This Spirit is one in person according to his subsistence: but in communication of his power, and in demonstration of his divine works in those seven churches, perfectly manifests himself as if there were many spirits, every one perfectly working in his own church. Which is why in (Revelation 5:6) they are called the seven horns and seven eyes of the Lamb, as if to say, as his most absolute power and wisdom. In (Revelation 3:1) Christ is said to have those seven spirits of God, and in (Revelation 4:5) it is said that seven lamps burn before his throne, which also are those seven spirits of God. That this place ought to be so understood, it is thus proved. For first, grace and peace is asked by prayer from this Spirit, which is a divine work, and an action incommunicable in respect to God. Secondly, he is placed between the Father and the Son, as set in the same degree of dignity and operation with them, besides, he is before the throne, as of the same substance with the Father and the Son: as the seven eyes and seven horns of the Lamb. Moreover, these spirits are never said to adore God, as all other things are. Finally, this is the power by which the Lamb opened the book, and loosed the seven seals of it, when no one could be found among all creatures by whom the book might be opened (Revelation 5:1); Of these things long ago Master John Luide of Oxford wrote to me. Now the Holy Spirit is named before Christ because a long speech about Christ follows.

(d) These are the seven spirits, which are later called the horns and eyes of the Lamb in (Revelation 5:6) and are now acting as a guard waiting on God.