Whether we regard verses 2 and 3 as connected grammatically with the preceding or the following verses, they equally refer to John, and define his position in relation to the Gospel. The Revised Version restores the true reading, 'in Isaiah the prophet,' which some unwise and timid transcriber has, as he thought, mended into 'the prophets,' for fear that an error should be found in Scripture. Of course, verse 2 is not Isaiah's, but Malachi's; but verse 3, which is Isaiah's, was uppermost in Mark's mind, and his quotation of Malachi is, apparently, an afterthought, and is plainly merely introductory of the other, on which the stress lies. The remarkable variation in the Malachi quotation, which occurs in all three Evangelists, shows how completely they recognised the divinity of our Lord, in their making words which, in the original, are addressed by Jehovah to Himself, to be addressed by the Father to the Son. There is a difference in the representation of the office of the forerunner in the two prophetic passages. In the former 'he' prepares the way of the coming Lord; in the latter he calls upon his hearers to prepare it. In fact, John prepared the way, as we shall see presently, just by calling on men to do so. In Mark's view, the first stage in the gospel is the mission of John. He might have gone further back--to the work of prophets of old, or to the earliest beginnings in time of the self-revelation of God, as the writer of the Epistle to the Hebrews does; or he might have ascended even higher up the stream--to the true 'beginning,' from which the fourth Evangelist starts. But his distinctly practical genius leads him to fix his gaze on the historical fact of John's mission, and to claim for it a unique position, which he proceeds to develop.
II. So we have, next, the strong servant and fore runner (verses 4-8). The abruptness with which the curtain is drawn, and the gaunt figure of the desert-loving ascetic shown us, is very striking. It is like the way in which Elijah, his prototype, leaps, as it were, full-armed, into the arena. The parallel passage in Matthew links his appearance with the events which it has been narrating by the phrase 'in these days,' and calls him 'the Baptist.' Mark has no such words, but lets him stand forth in his isolation. The two accounts may profitably be compared. Their likenesses suggest that they rest on a common basis, probably of oral tradition, while their differences are, for the most part, significant. Mark differs in his arrangement of the common matter, in omissions, and in some variations of expression. Each account gives a general summary of John's teaching at the beginning; but Matthew puts emphasis on the Baptist's proclamation that the kingdom of heaven was at hand, to which nothing in Mark corresponds. His Gospel does not dwell on the royalty of Jesus, but rather represents Him as the Servant than as the King. Mark begins with describing John as baptizing, which only appears later in Matthew's account. Mark omits all reference to the Sadducees and Pharisees, and to John's sharp words to them. He has nothing about the axe laid to the trees, nothing about the children of Abraham, nothing about the fan in the hand of the great Husbandman. All the theocratic aspect of the Messiah, as proclaimed by John, is absent; and, as there is no reference to the fire which destroys, so neither is there to the fire of the Holy Ghost, in which He baptizes. Mark reports only John's preaching and baptism of repentance, and his testimony to Christ as stronger than he, and as baptizing with the Holy Ghost.
So, on the whole, Mark's picture brings out prominently the following traits in John's personality and mission:--First, his preparation for Christ by preaching repentance. The truest way to create in men a longing for Jesus, and to lead to a true apprehension of His unique gift to mankind, is to evoke the penitent consciousness of sin. The preacher of guilt and repentance is the herald of the bringer of pardon and purity. That is true in reference to the relation of Judaism and Christianity, of John and Jesus, and is as true to-day as ever it was. The root of maimed conceptions of the work and nature of Jesus Christ is a defective sense of sin. When men are roused to believe in judgment, and to realise their own evil, they are ready to listen to the blessed news of a Saviour from sin and its curse. The Christ whom John heralds is the Christ that men need; the Christ whom men receive, without having been out in the wilderness with the stern preacher of sin and judgment, is but half a Christ--and it is the vital half that is missing.