John 17:23

“I in them, etc.] Christ is in his saints; not as he is in all the world, being the omnipresent God; or as he is in every man, communicating the light of nature as Creator; or as he is in the human nature, which is united to his divine person; or circumscriptively to the exclusion of him elsewhere; for he is in heaven, his blood is within the veil, and his righteousness without us: but he is in them, in a gracious manner, in regeneration; when he is revealed to them, formed in them, enters into them, takes possession of them, communicates his grace, grants fellowship with himself, and dwells in them; not only by his Spirit and grace, but in person, as the head in the members, as the master of…”

“I in them, and thou in me, that they may be made perfect in one--(See on Joh 17:21).”

“May be made perfect in one - That their union may be complete. That there may be no jars, discords, or contentions. A machine is perfect or complete when it has all its parts and is in good order when there is no portion of it wanting. So the union of Christians, for which the Saviour prayed, would be complete or perfect if there were no controversies, no envyings, no contentions, and no heart-burnings and jealousies. It is worthy of remark here how entirely the union of his people occupied the mind of Jesus as he drew near to death. He saw the danger of strifes and contentions in the church. He knew the imperfections of even the best of men. He saw how prone they would be to passion and…”

“17:23 that the world will know: If the church lives in the Spirit, reflects God’s glory and love, and shows unity sustained by a shared knowledge of God, then its testimony will astonish the world.”

“I: Joh 6:56, Joh 14:10, Joh 14:23; Rom 8:10, Rom 8:11; Co1 1:30; Co2 5:21; Gal 3:28; Jo1 1:3; Jo1 4:12-16 made: Eph 4:12-16; Phi 3:15; Col 1:28, Col 2:2, Col 2:9, Col 2:10, Col 3:14; Pe1 5:10 the: Joh 13:35 and hast: Joh 17:24; Eph 1:6-14; Jo1 3:1, Jo1 4:19 John 17:24”