John 17:14–19

Verse 14. He tells his Father the reason why the world hated them, because they were not of the world. By generation, indeed, they were of the world; but by regeneration, they were not of the world. Thus they became like to himself, being born again of that Holy Spirit, by whose all powerful operation, he took upon himself the form of a servant. But although they were not of the world, still was it necessary that they should remain in the world; therefore he continues, I ask not that thou wouldst take them out of the world. Saint Augustine tract. 107. in Joan.

Verse 18. As thou hast sent me into the world, I also have sent them into the world. He speaks of that mission, which agreed with him, as man, and become man for the salvation of mankind, to which also the apostles, and their successors were to co-operate, as the ministers and instruments of Christ, by virtue of their mission from him. Witham.—For the same intent as Christ himself was sent, were the apostles sent also: whence Saint Paul says, God was in Christ reconciling the world to himself, and he has placed in us the word of reconciliation. 2 Corinthians 5:19. Glossarium.

Verse 19. And for them do I sanctify myself [6]. Saint Augustine expounds it, I sanctify them, who are my members, in myself. The interpretation of Saint John Chrysostom and S. Cyril, seems preferable, that to sanctify in the style of Scriptures, is oftentimes the same as to offer up a sacrifice: so the sense here is, I sacrifice, and offer up myself on the cross for them and all mankind. Witham.—By this Christ shews, that he sanctified the apostles, by sanctifying himself; because they are the members of his body. Saint Augustine tract. 107. in Joan.—Or, according to Saint John Chrysostom I offer myself up to be the victim in their behalf. For victims, and whatever is dedicated to God, are called holy. He, their head, was offered up, and they also are immolated, according to that of the apostle, Romans 12. Exhibit your members a living sacrifice, holy, and so forth Saint John Chrysostom hom. lxxxi in Joan.