| Barnes' Notes on the Bible See John 15:19.
Gill's Exposition of the Entire BibleThey are not of the world, even as I am not of the world. These words are repeated from John 17:14, where they are given as a reason of the world's hatred to them; and here, as showing that they are exposed to the evil of it; and in both are used as an argument with his Father, that he would take notice of them, and preserve them.
Geneva Study BibleThey are not of the world, even as I am not of the world.
People's New Testament 17:15,16 I pray not that thou shouldest take them out of the world. The world had hated the Master and was about to slay him, because he was not of the world. So it would hate the apostles, who were not of the world, and seek to slay them; he does not pray that they should be taken out of the world, for they have a work to do, but that the Father would keep them from the power of the evil one.
Scofield Reference NotesMargin world kosmos = world-system. Jn 18:36 7:7. See Scofield Note: "Rev 13:8".
Jamieson-Fausset-Brown Bible Commentary16. They are not of the world, even as I am not of the world-(See Joh 15:18, 19). This is reiterated here, to pave the way for the prayer which follows.
Matthew Henry's Concise Commentary17:11-16 Christ does not pray that they might be rich and great in the world, but that they might be kept from sin, strengthened for their duty, and brought safe to heaven. The prosperity of the soul is the best prosperity. He pleaded with his holy Father, that he would keep them by his power and for his glory, that they might be united in affection and labours, even according to the union of the Father and the Son. He did not pray that his disciples should be removed out of the world, that they might escape the rage of men, for they had a great work to do for the glory of God, and the benefit of mankind. But he prayed that the Father would keep them from the evil, from being corrupted by the world, the remains of sin in their hearts, and from the power and craft of Satan. So that they might pass through the world as through an enemy's country, as he had done. They are not left here to pursue the same objects as the men around them, but to glorify God, and to serve their generation. The Spirit of God in true Christians is opposed to the spirit of the world. | 
