This verse which follows from the reference to Judas is of course, like it, peculiar to St. John.
But because he was a thief, and had the bag. — Comp. Notes on John 13:29 and Luke 8:1-3. We have to think of Judas as treasurer of the common fund which supplied the wants of the little band, and from which gifts to the poor were made. The word rendered “bag” here, the only passage where it occurs in the New Testament, and “chest,” in 2 Chronicles 24:8-11, means literally the “key-chest,” in which musicians carried their flute-keys. Hence it was applied to a chest in the wider sense, and especially, as here, to a small and portable chest.
And bare what was put therein. — This is but to say over again, if we take the ordinary sense of the words, what is already implied in the fact that he kept the bag. The form of the word expresses continuance of the act, and may refer to the recurring opportunities of fraud as distinct from the mere fact of carrying the chest with a known sum in it. But we may certainly render the word “bare away,” for St. John himself uses it in this sense in John 20:15; and this clause would then mean “and purloined what was put therein.”