I. Note the law of service as the true greatness (verses 33-35). 'When He was in the house, He asked them.' He had let them talk as they would on the road, walking alone in front, and they keeping, as they thought, out of ear-shot; but, when at rest together in the house (perhaps Peter's) where He lived in Capernaum, He lets them see, by the question and still more by the following teaching, that He knew what He asked, and needed no answer. The tongues that had been so loud on the road were dumb in the house--silenced by conscience. His servants still do and say many things on the road which they would not do if they saw Him close beside them, and they sometimes fancy that these escape Him. But when they are 'in the house' with Him, they will find that He knew all that was going on; and when He asks the account of it, they, too, will be speechless. 'A thing which does not appear wrong by itself shows its true character when brought to the judgment of God and the knowledge of Jesus Christ. (_Bengel_). Christ deals with the fault with much solemnity, seating Himself, as Teacher and Superior, and summoning the whole Twelve to hear. We do not enter on the difficult question of the relation of Mark's report of our Lord's words to those of the other Evangelists, but rather try to bring out the significance of their form and connection here. Note, then, that here we have not so much the nature of true greatness, as the road to it. 'If any man would be first,' he is to be least and servant, and thereby he will reach his aim. Of course, that involves the conception of the nature of true greatness as service, but still the distinction is to be kept in view. Further, 'last of all' is not the same as 'servant of all.' The one phrase expresses humility; the other, ministry. An indolent humility, so very humble that it does nothing for others, and a service which if not humble, are equally incomplete, and neither leads to or is the greatness at which alone a Christian ought to aim. There are two paradoxes here. The lowest is the highest, the servant is the chief; and they may be turned round with equal truth--the highest is the lowest, and the chief is the servant. The former tells us how things really are, and what they look like, when seen from the centre by His eye. The latter prescribes the duties and responsibilities of high position. In fact and truth, to sink is the way to rise, and to serve is the way to rule--only the rise and the rule are of another sort than contents worldly ambition, and the Christian must rectify his notions of what loftiness and greatness are. On the other hand, distinguishing gifts of mind, heart, leisure, position, possessions, or anything else, are given us for others, and bind us to serve. Both things follow from the nature of Christ's kingdom, which is a kingdom of love; for in love the vulgar distinctions of higher and lower are abolished, and service is delight.