Moses conveyed to the people G‑d’s words, and the people in turn accepted upon themselves to do all that G‑d commands of them. G‑d then instructed Moses to have the Israelites prepare themselves, because in three days’ time He would reveal Himself atop the mountain to the entire nation. The Israelites were commanded to sanctify themselves, and were warned not to approach the mountain until after the divine revelation. On the morning of the third day, thunder, lightning, a thick cloud and the piercing sound of a shofar emanated from the mountaintop. Mt. Sinai was smoking and trembling, while the sound of the shofar grew steadily louder. Moses escorted the shuddering and frightened nation to the mountain, and settled them at its base.