With all this the Sinai covenant was in accord. Its conditional terms we have seen, as propounded through Moses. “Thus shalt thou say to the house of Jacob, and tell the children of Israel: Ye have seen what I did to the Egyptians, and how I bare you on eagles’ wings, and brought you unto myself. Now, therefore, _if ye will obey my voice indeed, and keep my covenant_.”—Ex. xix, 3-5. The “voice” which they were to obey they heard on the next day, when God spake to them the words of the law, from the midst of the smoke and flame. Of it Moses afterward reminded the people: “Ye came near and stood under the mountain; and the mountain burned with fire unto the midst of heaven, with darkness, clouds, and thick darkness. And the Lord spake unto you out of the midst of the fire: ye heard the voice of the words, but saw no similitude, only a voice. And he declared unto you his covenant which he commanded you to perform, even ten commandments; and he wrote them upon two tables of stone.”—Deut. iv, 11-13. Very great emphasis attaches to the Ten Commandments, in their relation as thus the fundamental law of the covenant. The first overture having been addressed to Israel, in the terms, “If ye will obey my voice,” and by them accepted, the next day that voice was heard uttering those commandments. Again the people are called upon, and again respond in pledge of obedience. Moses then wrote in “the book of the covenant” all these words of the Lord, and read them in the audience of the people. And it was not till again they promised obedience to the terms thus set before them that the covenant was ratified, as we have seen. The Ten Commandments were then, by the finger of God, engraved on the two tables of stone, which were thence known as “the tables of the covenant.” These were placed in “the ark of the covenant,” which was in the holy of holies, in “the tabernacle of the covenant.” Both of these derived their names and significance from these tables, which were the very center of the whole system of religion and worship connected with the tabernacle. The lid of the ark which covered these tables was the golden mercy-seat, with its cherubim of gold, between which stood the pillar of glory, the Shechinah, overshadowing the mercy-seat. It thus typified God’s throne of grace immovably based upon the firm foundation of his eternal law—mercy to man only possible on condition of satisfaction to that law. Therefore, when remembrance of sins was made every year (Heb. x, 3), it was by the sprinkling of blood upon the mercy-seat and the ark of the covenant. (Ib. ix, 7.) A proper regard to the fact that the moral law was thus the fundamental condition of the covenant, while the ritual law was no part of it, but a later system of testimony, would have prevented much perplexing and erroneous speculation on the subject.