We should have expected that the figure of the Messiah, as conceived by the Prophets, would partake largely of the prophetic office idealised and accepted by an obedient people. This however is not the case. There is a promise of a prophet made through Moses, which in the New Testament has been interpreted as a Messianic prophecy (Deut. xviii. 18; Acts iii. 22, vii. 37), but an examination of the passage, which follows a denunciation of the practices of divination, necromancy, and sorcery, out of which primitive Prophetism arose, shows that it is a promise of the establishment of the prophetic office rather than of any one person. Elsewhere Moses is made to exclaim: "would that all the Lord's people were prophets" (Num. xi. 29). Both these passages are due to prophetic teaching, and this is the Prophets' conception of their office: they do not rejoice in their splendid isolation and their unique relation to God; they are grieved that the people do not share their possession of the Spirit of God and their hearing of His word, for to them these things are the essence of all true religion. So they look forward to a time when their office will no longer be necessary (Jer. xxxi. 34), and when the Spirit of the Lord shall be poured out on all flesh (Joel ii. 28f). It is not in any contradiction to this that the picture of the Servant of the Lord, delineated by the Second Isaiah, is largely drawn from the prophetic office (Isa. xlii. 1-4, xlix. 1-6, l. 4); for the Servant is the Nation of Israel fulfilling her prophetic role among the nations of mankind. In the late prophecy of Malachi the figure of Elijah the prophet is seen in the future, but only as the herald of the coming of the Messianic era (Mal. iv. 5).
The Priest contributes little more than the Prophet to the picture (Zech. iii.; vi. 12; Psa. cx.); for to the prophetic conception of things the Priesthood is hardly a necessary office in a true religion. It is from the office of the King that the Messiah is largely drawn. This conception could only have arisen after the founding of the monarchy and only when the real David had faded far enough into the past to be idealised. It was in their experience of the imperfection of the Kings of Israel and Judah that the Prophets saw the need for a true kingly head; and in the oppression of military kingdoms, the need for a mighty warrior. And yet it is not a king who fills the picture of the future, so much as a kingdom.