John 17:22

And the glory Thou gavest Me I have given them, that they may be one, even as we are one. By the "glory," understand (1.) The glory of the Divine Sonship. For Christ has this as God by nature, and as man by the hypostatical Union. And this He gives to the holy faithful ones, to have it not by nature, but by adoption, and to be the sons of God, not by nature, as Christ, but as adopted. So Jansenius, and before him, S. Ambrose, v. 4.

2. Maldonatus understands by the word "the love," that whereby the Father glorified Him at His baptism, and elsewhere by showing Him forth as His Beloved Son.

3. Leontius and Ribera understand it to be the Eucharist, for in this the Godhead and Manhood of Christ are given to us. And this is the highest glory, for we being many are one Body, for we are all partakers of the one Body and the one Cup. (1 Cor. x.) And in like manner S. Cyril, xi. 26, and S. Hilary (de Trinit. viii.), explain it of the Godhead of the Word united to the flesh, for Christ received this as man from the Father, when the Word was made flesh. And this Christ gave to us when He made His flesh to be our food, and He is united really and truly to us by this wonderful sacrament.

Toletus takes the same view, who thus explains it, I have already made them one by the glory I received from Thee. Give, 0 Father, thy Holy Spirit, that they may also become one. This glory is the Godhead of the Son, which He says He has received as man through the Hypostatic Union. And this Godhead united to His flesh Christ gave to us in the sacrament which He had just instituted.

Symbolically. S. Chrysostom and Euthymius understand by 'glory' both the miraculous power which Christ gave His disciples, and also the unity of concord, of which it was said, "that they may be one." For these two were an effectual argument for confirming the truth of the Faith, namely miracles, and the wonderful agreement in the belief of them.

Anagogically. S. Augustine (in loc.) says, "This is the glorifying of the body. The immortality and glory which after three days I will give to My Flesh and Manhood at My Resurrection, 'I have given,' i.e., I will give most assuredly, to the faithful at the general resurrection."