I need not remind you, I suppose, that we have here the two great representative figures of the past history of Israel--the Lawgiver, who, according to the Old Testament, was not only the medium of declaring the divine will, but the medium of establishing Sacrifice as well as Law, and the Prophet, who, though no written words of his have been preserved, and nothing of a predictive and Messianic character seems to have dropped from His lips, yet stood as the representative and head of the great prophetic order to which so much of the earlier revelation was entrusted. And now here they two stand with Christ on the mountain; and the theme about which they spake with Him there is the theme of which the former revelation had spoken in type and shadow, in stammering words, at sundry times and in divers manners,' to the former generations--viz, the coming of the great Sacrifice and the offering of the great Propitiation. All the past of Israel pointed onwards to the Cross, and in that Cross its highest word was transcended, its faintest emblems were explained and expressed, its unsolved problems which it had raised in order that they might be felt to be unsolved, were all answered, and that which had been set forth but in shadow and symbol was given to the world in reality for evermore. In Moses Law and Sacrifice, and in Elijah the prophetic function, met by the side of Christ, and spake of His decease.'
Now, dear friends, let me say one word here before I pass on. There is a great deal being said nowadays about the position of the Old Testament, the origin of its ritual, and other critical, and, to some extent, historical, questions. I have no doubt that we have much to learn upon these subjects; but what I would now insist upon is this, that all these subjects, about which people are getting so excited, and some of them so angry, stand, and may be dealt with, altogether apart from this central thought, that the purpose and meaning, the end and object of the whole preliminary and progressive revelation of God from the beginning. are to lead straight up to Jesus Christ and to His Cross. And if we understand that, and feel that' the testimony of Jesus is the spirit of prophecy,' and that law and sacrifice, commandments and altar, Sinai and Zion, the fiery words that were spoken in the wilderness, and the perpetual burnt-offering that went up in the Temple, had one mission--viz, to prepare the way of the Lord '--we have grasped the essential truth as to the Old Revelation; and if we do not understand that, we may be as scholarly and erudite and original as we please, but we miss the one truth which is worth grasping. The relation between the Old revelation and the New is this, that Christ was pointed to by it all, and that in Himself He sums up and surpasses and antiquates, because He fulfils, all the past.
Therefore Moses and Elijah came to witness as well as to encourage. Their presence proclaimed that Christ was the meaning of all the past, and the crown of the divine revelation. And they faded away, and Jesus was found alone standing there, as He stands for ever before all generations and all lands, the sole, the perfect, the eternal Revealer of the heart and will of God. God, who at sundry times and in divers manners spake unto the fathers by the prophets, hath in these last days spoken unto us by His Son.'