While I was with them in the world, I kept them in your name: those that you gave me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled.
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Theophylact of Ochrid
AD 1107
Those that Thou gavest Me I have kept: these words convey profound humility if one properly understands them. Throughout this chapter it might appear that Jesus is directing the Father to guard the disciples after His departure, like a man who gives his friend a sum of money for safe keeping and tells him, “Look, I have not lost any of this: neither must you.” But in reality, the Lord is consoling the disciples: “These things I speak in the world to reassure the disciples and give them joy. Knowing that You have received them safely and will guard them—just as I did, without losing any—they can again breathe freely.” How can the Lord claim to have lost none of them, when Judas fell away, and many other followers left Him as well (see Jn. 6:66)? “As far as it depended on Me,” He explains, “I have lost none of them. I did everything on My part to keep them, and I guarded them zealously. If some chose to reject Me, it is not My fault.” That (ἵνα) the Scripture might be fulfilled, meaning, every Scripture referring to the son of perdition. For he is mentioned in various places in the Psalms and in other prophetic books. As we have explained before, the conjunction ἵνα, (in order) that, is commonly used in Scripture to express the outcome of an event.