Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 22:24-27

“While they were enquiring among themselves who should betray the Lord, they would naturally go on to say to one another, “Thou art the traitor,” and so become impelled to say, “I am the best, I am the greatest.” Hence it is said, And there was also a strife among them which should be accounted the greatest.”