Exodus 19:2

19:2 After they journeyed from Rephidim, they came to the Desert of Sinai, and they camped in the desert; Israel camped there in front of the mountain.

Exodus 19:14

19:14 Then Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.

Exodus 19:17

19:17 Moses brought the people out of the camp to meet God, and they took their place at the foot of the mountain.

Exodus 24:17

24:17 Now the appearance of the glory of the Lord was like a devouring fire on the top of the mountain in plain view of the people.