The redeemed tribes came to Sinai in the third month after the exodus. Moses was called up into the mount and commanded to propose to them the covenant of God. It was in these terms: “If ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people, for all the earth is mine, and ye shall be unto me a kingdom of priests and a holy nation.”—Ex. xix, 3-6. This proposal the people, with one voice, accepted. God then commanded Moses: “Sanctify the people to-day and to-morrow, and let them wash their clothes and be ready against the third day; for the third day the Lord will come down in the sight of all the people upon Mount Sinai.”—Vs. 10, 11. On the third day, in the morning, there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud, so that all the people trembled. And Mount Sinai was altogether on a smoke, because the Lord descended upon it in fire, and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly. And when the voice of the trumpet sounded long, and waxed louder and louder, Moses spake, and God answered him by a voice. And the Lord came down upon the top of the mount; and the Lord called Moses up to the top of the mount, and Moses went up. In the midst of this tremendous scene, so well calculated to fill the people with awe, and to deter them from the thought of a profane approach, Moses was nevertheless charged to go down and warn the people, and set bounds around the mountain, lest they should break through unto the Lord to gaze, and many of them perish. After such means, used to impress Israel with a profound sense of God’s majesty and their infinite estrangement from him, his voice was heard, uttering in their ears the Ten Commandments, prefaced with the announcement of himself as their God and Redeemer. (Compare Deut. iv, 7-13.) At the entreaty of the people, the terribleness of God’s audible voice was withdrawn, and Moses was sent to tell them the words of the Lord and his judgments. The people again unanimously declared, “All the words which the Lord hath said, will we do.”—Ex. xxiv, 3.