John 13:22

Therefore the disciples began to look at one another, doubting of whom He was speaking, and asking, too, one by one, "Lord, is it I?" For, as Chrysostom says, "Because He did not speak of His betrayer by name, He brought fear upon all, and, though conscious to themselves of nothing evil, they yet believed Christ more than their own thoughts." And, as Origen says, "They, as being men, remembered that the feelings even of enthusiasts are liable to change." Ver. 23. There was then reclining on the bosom of Jesus one of His disciples, whom Jesus loved, namely, John himself. The Apostles, desiring to know by name who was to be the traitor, Peter, more eager and fervent than the rest, hints to John, who is reclining on the bosom of Jesus, to inquire of Jesus, as John here relates, and this is the force of the "then." John being dearer to Jesus and closer to Him, inasmuch as he was reclining on His bosom, therefore, for this reason, Peter hints to him to inquire of Jesus his beloved the name of the traitor. Moreover, John is said to have reclined on the bosom of Jesus because the ancients used not to sit at table, but reclined by twos or threes on the several couches placed before the tables, so that, leaning on the lower part of the right arm, they lay rather than sat at table; and so it came to pass that the second person coming next to the first on his left hand would seem as it were to lie upon his bosom.

Whom Jesus loved not only with the love of human friendship, but also with the love of charity, for the sake of virginity and purity, his modesty and meekness, and the sweet and holy disposition by which he excelled all the others. So say Cyril, Chrysostom, Theophylact, Euthymius, and St. Jerome in his letter to Heliodorus. Still it does not follow from this that John was absolutely holier than all the other apostles; Peter may have been more ardent in charity than he, and therefore holier than John. For sanctity consists chiefly in the love of God, which is its measure. Moreover, that John was reclining on the bosom of Jesus was not only a mark of His love for him at the time, but also a sign of what was to be, "That he might take from thence," says Bede, "that voice unheard through all ages which he was afterwards to send forth to the world."