John 17:12

I kept--guarded. them in thy name--acting as Thy Representative on earth. none of them is lost, but the son of perdition--It is not implied here that the son of perdition was one of those whom the Father had given to the Son, but rather the contrary (Joh 13:18) [WEBSTER and WILKINSON]. It is just as in Luk 4:26-27, where we are not to suppose that the woman of Sarepta (in Sidon) was one of the widows of Israel, nor Naaman the Syrian one of the lepers in Israel, though the language--the same as here--might seem to express it. son of perdition--doomed to it (Th2 2:3; Mar 14:21).

This chapter is a prayer, it is the Lord's prayer, the Lord Christ's prayer. There was one Lord's prayer which he taught us to pray, and did not pray himself, for he needed not to pray for the forgiveness of sin; but this was properly and peculiarly his, and suited him only as a Mediator, and is a sample of his intercession, and yet is of use to us both for instruction and encouragement in prayer. Observe, I. The circumstances of the prayer (Joh 17:1). II. The prayer itself. 1. He prays for himself (Joh 17:1-5). 2. He prays for those that are his. And in this see, (1.) The general pleas with which he introduces his petitions for them (Joh 17:6-10). (2.) The particular petitions he puts up for them [1.] That they might be kept (Joh 17:11-16). [2.] That they might be sanctified (Joh 17:17-19). [3.] That they might be united (Joh 17:11 and Joh 17:20-23). [4.] That they might be glorified (Joh 17:24-26).

17:12-13 Until now, Jesus had guarded his followers. Now he was concerned for their strength and survival in his absence, because the world would be hostile toward them (15:18-27) and their mission of challenging the world by heralding the truth (16:8-11). After Jesus’ departure, the Spirit would protect them (15:26) and bring them joy.