God told Moses to have the people ready "for the third day" (Exodus 19:11), and the Mekhilta identifies this as the sixth day of the month of Sivan — the day on which the Torah was given. The verse continues with God's announcement: "for on the third day the Lord will go down before the eyes of all the people on Mount Sinai."
The Mekhilta seizes on the phrase "the Lord will go down" and makes a striking observation: this is one of the ten "descents" recorded in the Torah. God, who is beyond all spatial categories, is described in Scripture as descending to specific locations at specific moments. Each descent marks an event of extraordinary significance — a moment when the infinite chose to contract into the finite, when the Creator entered the created world in a way that human beings could perceive.
The concept of divine descent is theologically charged. God does not occupy space in any literal sense, yet the Torah repeatedly describes Him as coming down — to the Garden of Eden, to the Tower of Babel, to Sinai, and elsewhere. The rabbis catalogued these descents carefully, treating each one as a distinct event in the history of God's interaction with humanity.
The Sinai descent was unique among the ten because it happened "before the eyes of all the people." This was not a private theophany witnessed by a single prophet or patriarch. The entire nation saw it. God's descent onto Sinai was the most public act of divine revelation in the Torah — visible, audible, and undeniable to every Israelite who stood at the base of the mountain on the sixth of Sivan.