John Chrysostom
Catena Aurea · Matthäusevangelium 23
But all their works they do for to be seen of men: they make broad their phylacteries, and enlarge the borders of their garments, And love the uppermost rooms at feasts, and the chief seats in the synagogues, And greetings in the markets, and to be called of men, Rabbi, Rabbi. But be not ye called Rabbi: for one is your Master, even Christ; and all ye are brethren. And call no man your father upon the earth: for one is your Father, which is in heaven. Neither be ye called masters: for one is your Master, even Christ. But he that is greatest among you shall be your servant. And whosoever shall exalt himself shall be abased; and he that shall humble himself shall be exalted.
Or otherwise; Of the foregoing things with which He had charged the Pharisees, He now passes over many as of no weight, and such as His disciples needed not to be instructed in; but that which was the cause of all evils, namely, ambition of the master’s seat, that He insists upon to instruct His disciples.