Now, Moses came in unto the Mountain of God, to Horeb, so God called unto him, Moses! Moses! Do not draw nigh hither,—put off thy sandals from thy feet, for, the place whereon thou art standing, is, Holy Ground. (Ex. 3:1-5)
"My servant Moses,—In all my house, trusty, is he: Mouth to Mouth, do I speak with him, And plainly—not in dark sayings, And, the form of Yahweh, doth he discern" (Num. 12:7-8)
1.) [Ascent] Ex. 19:3-6 (Yahweh's Covenant); "And, when, Moses, had gone up unto God, then called Yahweh unto him, out of the mountain, If ye will, indeed hearken, to my voice, And keep my covenant, Then shall, As a kingdom of priests, And a holy nation. These, are the words, which thou shalt speak unto the sons of Israel."
[Descent] Ex. 19:7-8 (Peoples Agree to the Covenant); "Then came Moses, and called for the elders of the people,—and put before them all these words, which Yahweh had commanded him. And all the people responded together, and said, All that Yahweh hath spoken, will we do."
2.) [Ascent] Ex. 19:8-13 (Moses as Mediator of the Covenant); "And Moses took back the words of the people, unto Yahweh. Lo! I, am coming unto thee in the veiling of cloud, in order that the people may hear when I speak with thee... Moses—Go unto the people, and thou shalt hallow them today, and tomorrow,—and they shall wash their clothes; and shall be ready, by the third day,—for, on the third day, will Yahweh come down in the sight of all the people, upon Mount Sinai."
[Descent] Ex. 19:14-19 (Yahweh's 1st Manifestation to the People); "Then Moses went down out of the mount, unto the people,—and hallowed the people, and they washed their clothes... And it came to pass, on the third day, when the morning had come, that there were thunderings and lightnings, and a heavy cloud upon the mount, and the sound of a horn, loud exceedingly,—and all the people who were in the camp trembled. And Moses brought forth the people, to meet God... Moses, spake and, God, responded to him with a voice."