"“The revelation of Jesus Christ, which God gave unto Him, to show unto His servants things which must shortly come to pass; and He sent and signified it by His angel unto His servant John: who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw. Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand.” Revelation 1:1-3 . 8T 301.5"
"The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John: Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw. Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand."
Ellen White directly references Revelation 1:1-3 in this passage.