"I pray that now as never before both ministers and church members may come up to the help of the Lord, to the help of the Lord against the mighty powers of darkness. Study prayerfully the seventeenth chapter of John. This chapter is not only to be read again and again; its truths are to be eaten and assimilated. “For their sakes,” Christ prayed: “I sanctify Myself, that they also might be sanctified through the truth. 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.” John 17:19-23 . 8T 80.1"
"And for their sakes I sanctify myself, that they also might be sanctified through the truth. 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."
Ellen White directly references John 17:19-23 in this passage.