"“Father, I will that they also, whom Thou hast given Me, be with Me where I am; that they may behold My glory, which Thou hast given Me: for Thou lovedst Me before the foundation of the world. O righteous Father, the world hath not known Thee: but I have known Thee, and these have known that Thou hast sent Me. And I have declared unto them Thy name, and will declare it: that the love wherewith Thou hast loved Me may be in them, and I in them.” John 17:20-26 . 8T 239.5"
"Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one: I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me. Father, I will that they also, whom thou hast given me, be with me where I am; that they may behold my glory, which thou hast given me: for thou lovedst me before the foundation of the world. O righteous Father, the world hath not known thee: but I have known thee, and these have known that thou hast sent me. And I have declared unto them thy name, and will declare it: that the love wherewith thou hast loved me may be in them, and I in them."
Ellen White directly references John 17:20-26 in this passage.