But not only must our Lord have been encouraged and heartened by recalling the individual experiences of these men, but their presence reminds Him of His relation to them in God's purposes; for Moses and Elijah represent the whole Old Testament Church. By the Law and the Prophets had God up to this time dealt with men; through these He had revealed Himself. But Jesus had long since recognised that neither Moses nor Elias, neither Law nor Prophets, were sufficient. The Christ must come to effect a real mediation between God and man; and Jesus knew that He Himself was the Christ. On Him lay the task of making the salvation of the Jews the salvation of the whole world; of bringing all men to Jehovah. It was under pressure of this responsibility that He had searched the Scriptures, and found in the Scriptures what those had not found--that it was necessary that Christ should suffer and so enter into glory. Probably it was not so much any one passage of Scripture which had carried home to the mind of Jesus that the Christ must die. We may seek for that in vain; it was His perception of the real needs of men, and of what the Law and the Prophets had done to satisfy these needs, that showed Him what remained for the final Revealer and Mediator to accomplish. The Law and the Prophets had told men that God is holy, and men's blessedness, even as God's blessedness, lies in holiness. But this very teaching seemed to widen the breach between men and God, and to make union between them truly hopeless. By the law came not union with God, but the knowledge of sin. To put it shortly, fellowship or union with God, which is the beginning and end of all religion, is but another name for holiness. Holiness is union with God, and holiness can better be secured by revealing the holy God as a God of love than by law or by prophets. It is this holy love and lovingness that the cross of Christ brings home to every heart. This revelation of the Father, no document and no officials could possibly make; only the Beloved Son, only one who stood in a personal relation to the Father, and was of the same nature, as truly divine as human. Therefore the voice goes forth annulling all previous utterances, and turning all eyes to Jesus--"Hear Him!" Therefore, as often as the mind of Christ was employed on this subject, so often did He see the necessity of death. It was only by dying that men's sins could be expiated, and only by dying the fulness of God's love could be exhibited. The Law and the Prophets spoke to Him always, and now once more of the decease He must accomplish at Jerusalem. They spoke of His death, because it was His death that was presupposed by every sacrifice of the Law; by every prophecy that foretold good to man. The Law found its highest fulfilment in the most lawless of transgressions; prophecy found its richest in that which seemed to crush out hope itself.