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 ambition; how ready to mistake love of sect or party for zeal for pure religion; how selfish and worldly men in the church might divide his followers, and produce unholy feeling and contention; and he saw, also, how much this would do to dishonor religion.

Hence, he took occasion, when he was about to die, to impress the importance of union on his disciples. By solemn admonition, and by most tender and affecting appeals to God in supplication, he showed his sense of the value of this union. He used the most sublime and impressive illustration; he adverted to the eternal union between the Father and himself; he reminded them of his love, and of the effect that their union would have on the world, to fix it more deeply in their hearts. The effect has shown the infinite wisdom of the Saviour. The contentions and strifes of Christians have shown his knowledge in foreseeing it. The effect of all this on religion has shown that he understood the value of union. Christians have contended long enough. It is time that they should hear the parting admonitions of their Redeemer, and go unitedly against their common foe. The world still lies in wickedness; and the friends of Jesus, bound by the cords of eternal love, should advance together against the common enemy, and spread the triumphs of the gospel around the globe. All that is needful now, under the blessing of God, to convince the world" that God sent the Lord Jesus, is that very union among all Christians for which he prayed;" and when that union of feeling, and purpose, and action shall take place, the task of sending the gospel to all nations will be soon accomplished, and the morning of the millennial glory will dawn upon the world.

That the world may know - That the Jewish people first, and secondly the Gentiles, may acknowledge me as the true Messiah, and be saved unto life eternal.

I in them,.... 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 the house, and the King of them; which is an instance of condescending grace, and is peculiar to God's elect: hence all their holiness and fruitfulness; nor shall they ever perish; their bodies shall rise from the dead, and being reunited to their souls, Christ will be in them in a glorious manner to all eternity:

and thou in me; the Father is in Christ, not only by union of nature, nor merely in him, as Mediator, in a way of grace; but as he will show himself in and through him in glory for evermore, and is what is here prayed for:

that they may be made perfect in one; this regards not their justification, which is already perfect; nor their sanctification, which will be; but either perfection in glory, when they will be perfect in knowledge, in holiness, in peace, joy and love: or rather the perfection of their numbers is meant, when the whole election of grace will be completed in regeneration, sanctification, and glorification:

and that the world may know that thou hast sent me: as before; See Gill on John 17:21;

and hast loved them, as thou hast loved me. The Oriental versions, the Syriac, Arabic, Persic, and Ethiopic, all read the words thus, "and I have loved them, as thou hast loved me"; contrary to all the Greek copies, and other versions, which read as we do. The Father loved Christ as his own Son, and as Mediator; so he loved him when he assumed human nature, and became obedient to his will both in doing and suffering; when his Father left him, and poured out his wrath upon him, and when he laid down his life for the sheep. The instances of his love to him as Mediator are, his putting all things into his hands, showing him all that he does, and concealing nothing from him, and appointing him the only Saviour, the head of the church, and Judge of the world. The nature of this love is, that it is from eternity; is a love of complacency and delight; it is special and peculiar, unchangeable and inseparable, and will last for ever: now God has loved his people, as he has loved his Son; he loves them not merely as creatures, as the descendants of Adam, or as considered in themselves, but as in Christ. The instances of his love to them are, his choosing them in Christ; making a covenant with them in him; the mission of him into this world, to obtain salvation for them; the quickening and calling of them by his grace; the care he takes of them afterwards in supplying their wants, supporting them under temptations, delivering them out of afflictions, and causing all things to work together for their good; to all which add the provisions he makes for them, both for time and eternity. The nature of this love is such as that he bears to Christ; it is from everlasting; a love of the utmost delight and pleasure; it is special and peculiar, unchangeable, and will continue for ever: there is not the same reason for his loving them as his Son; and this as must not be thought to denote equality, but similitude and order.

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.

17:22,23 The glory which thou gavest to me I have given to them. God gave Christ the glory of Sonship and this resulted in their unity. So Christ gives to his disciples the glory of becoming the sons of God (Joh 1:12 1Jo 3:1). This glory, the adoption and gift of the Spirit, ought to effect

that they may be one as we are one. We cannot pray this prayer of Jesus and have the party spirit or labor to build up sectarianism. In the spirit of love we should oppose it, and labor to destroy sectarian names, creeds, organizations and interests. As the Son and the Father are one, have one work, one kingdom, one spirit, one interest, so must all that are Christ's. We must keep the unity of the Spirit in the bond of peace (Eph 4:3). There is one body and one Spirit, as there is one Lord (Eph 4:4,5).

Margin perfect

See Scofield Note: "Mt 5:48".

Margin world

kosmos = mankind. See Scofield Note: "Mt 4:8".

23. I in them, and thou in me, that they may be made perfect in one-(See on [1884]Joh 17:21).

17:20-23 Our Lord especially prayed, that all believers might be as one body under one head, animated by one soul, by their union with Christ and the Father in him, through the Holy Spirit dwelling in them. The more they dispute about lesser things, the more they throw doubts upon Christianity. Let us endeavour to keep the unity of the Spirit in the bond of peace, praying that all believers may be more and more united in one mind and one judgment. Thus shall we convince the world of the truth and excellence of our religion, and find more sweet communion with God and his saints.