Bede the Venerable
Catena Aurea · Markusevangelium 10
And when the ten heard it, they began to be much displeased with James and John. But Jesus called them to him, and saith unto them, Ye know that they which are accounted to rule over the Gentiles exercise lordship over them; and their great ones exercise authority upon them. But so shall it not be among you: but whosoever will be great among you, shall be your minister: And whosoever of you will be the chiefest, shall be servant of all. For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.
(ubi sup.) In which He teaches, that he is the greater, who is the less, and that he becomes the lord, who is servant of all: vain, therefore, was it both for the one party to seek for immoderate things, aud the other to be annoyed at their desiring greater things, since we are to arrive at the height of virtue not by power but by humility. Then He proposes an example, that if they lightly regarded His words, His deeds might make them ashamed, saying, For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.