Cyril of Alexandria
Catena Aurea · Lukasevangelium 9
Then there arose a reasoning among them, which of them should be greatest. And Jesus, perceiving the thought of their heart, took a child, and set him by him, And said unto them, Whosoever shall receive this child in my name receiveth me: and whosoever shall receive me receiveth him that sent me: for he that is least among you all, the same shall be great. And John answered and said, Master, we saw one casting out devils in thy name; and we forbad him, because he followeth not with us. And Jesus said unto him, Forbid him not: for he that is not against us is for us.
(non occ.) The devil lays plots of various kinds for them that love the best way of life. And if indeed by carnal allurements he can gain possession of a man’s heart, He sharpens his love of pleasure; but if a man has escaped these snares, he excites in him a desire of glory, and this passion for vain-glory had seized some one of His apostles. Hence it is said, Then there arose a reasoning among them, which of them should be the greatest. For to have such thoughts, belongs to him who desires to be superior to the rest; but I think it improbable that all the disciples gave way to this weakness; and therefore suppose that the Evangelist, not to seem to lay the charge to any individual, expresses himself indefinitely, saying, that there arose a reasoning among them.