This is the Revelation of Jesus Christ, which God gave him to show to his servants the things which must happen soon, which he sent and made known by his angel to his servant, John
The Revelation of Jesus Christ – the Book of Revelation is not the Revelation of the Apostle John. It is Christ’s revelation, which He received from God. It reveals the future of God’s Kingdom, its corruption and purification, that climaxes in the LORD’s Day.
Before the 3rd Century, there was no doubt about the writer of this book: it was written by John. But in the 4th Century, we find that half claimed that it was not authentic, and wanted it removed from the Bible. Eusebius in his Church History of 324, wrote: “opinions are evenly divided” [Book 3.24-.25]. The Church had already progressed on the path that Jesus prophesied, and could not accept the message of the Book of Revelation.
To His servants – this Book was written to provide inspiration to God’s servants throughout the ages. To all those who love the truth and aspire to see God’s kingdom established in righteousness. The Greek word doúlos, is actually slave, and frequently translated as “bond-servant.” It applies to all those who have been purchased by God, purchased by the blood of the Lord (Acts 20:28).
By His Angel – the Angel who guided John is called “God’s Angel” three times, see also Rev 22:6; Rev 22:16. This is the Angel of Yihvah, “the Bright Morning Star” who appears in three different forms to lead John through the Revelation story.