"Ministers and people declared that the prophecies of Daniel and the Revelation were incomprehensible mysteries. But Christ directed His disciples to the words of the prophet Daniel concerning events to take place in their time, and said: “Whoso readeth, let him understand .” Matthew 24:15 . And the assertion that the Revelation is a mystery, not to be understood, is contradicted by the very title of the book: “The Revelation of Jesus Christ, which God gave unto Him, to show unto His servants things which must shortly come to pass.... 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 . GC 341.1"
"When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)"
Ellen White directly references Matthew 24:15 in this passage.
"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.