Christ's followers must follow, but men can choose whether they will be His followers or not. So the must' is changed into let him,' and the if any man will' is put in the forefront. The conditions are fixed, but the choice as to accepting the position is free. A wider circle hears the terms of discipleship than heard the announcement of Christ's own sufferings. The terms are for all and for us. The law is stated in Mark 8:34, and then a series of reasons for it, and motives for accepting it, follow.
The law for every disciple is self-denial and taking up his cross. How present His own Cross must have been to Christ's vision, since the thought is introduced here, though He had not spoken of it, in foretelling His own death! It is not Christ's Cross that we have to take up. His sufferings stand alone, incapable of repetition and needing none; but each follower has his own. To slay the life of self is always pain, and there is no discipleship without crucifying the old man.' Taking up my cross does not merely mean meekly accepting God-sent or men-inflicted sorrows, but persistently carrying on the special form of self-denial which my special type of character requires. It will include these other meanings, but it goes deeper than they. Such self-immolation is the same thing as following Christ; for, with all the infinite difference between His Cross and ours, they are both crosses, and on the one hand there is no real discipleship without self-denial, and on the other there is no full self-denial without discipleship.
The first of the reasons for the law, in Mark 8:35, is a paradox, and a truth with two sides. To wish to save life is to lose it; to lose it for Christ's sake is to save it. Both are true, even without taking the future into account. The life of self is death; the death of the lower self is the life of the true self. The man who lives absorbed in the miserable care for his own wellbeing is dead to all which makes life noble, sweet, and real. Flagrant vice is not needed to kill the real life. Clean, respectable selfishness does the work effectually. The deadly gas is invisible, and has no smell. But while all selfishness is fatal, it is self-surrender and sacrifice,' for My sake and the gospel's,' which is life-giving. Heroism, generous self-devotion without love to Christ, is noble, but falls short of discipleship, and may even aggravate the sin of the man who exhibits it, because it shows what treasures he could lay at Christ's feet, if he would. It is only self-denial made sweet by reference to Him that leads to life. Who is this who thus demands that He should be the motive for which men shall hate' their own lives, and calmly assumes power to reward such sacrifice with a better life? The paradox is true, if we include a reference to the future, which is usually taken to be its only meaning; but on that familiar thought we need not enlarge.
The for' of Mark 8:36 seems to refer back to the law in Mark 8:34, and the verse enforces the command by an appeal to self-interest, which, in the highest sense of the word, dictates self-sacrifice. The men who live for self are dead, as Christ has been saying. Suppose their self-living had been successful' to the highest point, what would be the good of all the world to a dead man? Shrouds have no pockets.' He makes a poor bargain who sells his soul for the world. A man gets rich, and in the process drops generous impulses, affections, interest in noble things, perhaps principle and religion. tie has shrivelled and hardened into a mere fragment of himself; and so, when success comes, he cannot much enjoy it, and was happier, poor and sympathetic and enthusiastic and generous, than he is now, rich and dwindled. He who loses himself in gaining the world does not win it, but is mastered by it. This motive, too, like the preceding, has a double application--to the facts of life here, when they are seen in their deepest reality, and to the solemn future.
To that future our Lord passes, as His last reason for the command and motive for obeying it, in Mark 8:38. One great hindrance to out-and-out discipleship is fear of what the world will say. Hence come compromises and weak compliance on the part of disciples too timid to stand alone, or too sensitive to face a sarcasm and a smile. A wholesome contempt for the world's cackle is needed for following Christ. The geese on the common hiss at the passer-by who goes steadily through the flock. How grave and awful is that irony, if we may call it so, which casts the retribution in the mould of the sin! The judge shall be ashamed' of such unworthy disciples, shall blush to own such as His. May we venture to put stress on the fact that He does not say that He will reject them? They who were ashamed of Him were secret and imperfect disciples. Perhaps, though He be ashamed of them, though they have brought Him no credit, He will not wholly turn from them.
How marvellous the transition from the prediction of the Cross to this of the Throne! The Son of Man must suffer many things, and the same Son of Man shall come, attended by hosts of spirits who own Him for their King, and surrounded by the uncreated blaze of the glory of God in which He sits throned as His native abode. We do not know Jesus unless we know Him as the crucified Sacrifice for the world's sins, and as the exalted Judge of the world's deeds.
He adds a weighty word of enigmatical meaning, lest any should think that He was speaking only of some far-off judgment. The destruction of Jerusalem seems to be the event intended, which was, in fact, the beginning of retribution for Israel, and the starting-point of a more conspicuous manifestation of the kingdom of God. It was, therefore, a kind of rehearsal, or picture in little, of that coming and ultimate great day of the Lord, and was meant to be a sign' that it should surely come.
(NT only) to listen to the NET Bible 
