"It was through one who declared himself to be a “brother, and companion in tribulation” ( Revelation 1:9 ), that Christ revealed to His church the things that they must suffer for His sake. Looking down through long centuries of darkness and superstition, the aged exile saw multitudes suffering martyrdom because of their love for the truth. But he saw also that He who sustained His early witnesses would not forsake His faithful followers during the centuries of persecution that they must pass through before the close of time. “Fear none of those things which thou shalt suffer,” the Lord declared; “behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation: ... be thou faithful unto death, and I will give thee a crown of life.” Revelation 2:10 . AA 588.1"
"I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ."
Ellen White directly references Revelation 1:9 in this passage.
"Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life."
Ellen White directly references Revelation 2:10 in this passage.
"And to all the faithful ones who were striving against evil, John heard the promises made: “To him that overcometh will I give to eat of the tree of life, which is in the midst of the Paradise of God.” “He that overcometh, the same shall be clothed in white raiment; and I will not blot out his name out of the book of life, but I will confess his name before My Father, and before His angels.” “To him that overcometh will I grant to sit with Me in My throne, even as I also overcame, and am set down with My Father in His throne.” Verse 7 ; 3:5, 21 . AA 588.2"
"He that hath an ear, let him hear what the Spirit saith unto the churches; To him that overcometh will I give to eat of the tree of life, which is in the midst of the paradise of God."
EGW directly quotes Revelation 2:7.