Bede the Venerable
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.
Or, because they saw Peter, James, and John, taken apart to the mount, and the keys of the kingdom of heaven promised to Peter, they were angry that these three, or Peter, should have precedence over all; or because in the payment of the tribute they saw Peter made equal to the Lord, they supposed he was to be placed before the rest. But the attentive reader will find that the question was raised among them before the payment of the penny. For in truth Matthew relates that this took place at Capernaum; but Mark says, And he came to Capernaum, and being in the house, he asked them, What was it that ye disputed among yourselves in the way? But they held their peace; for by the way they had disputed among themselves who should be the greatest. (Mat. 18:24, Mark 9:33.)