Exodus 19:9-11

Lexham English Bible

⁹ And Yahweh said to Moses, “Look, I am going to come to you in a thick cloud^[a] in order that the people will hear when I speak with you and will also trust in you forever.” And Moses told the words of the people to Yahweh.

¹⁰ And Yahweh said to Moses, “Go to the people and consecrate them today and tomorrow. They must wash their clothes, ¹¹ and they must be prepared for the third day, because on the third day, Yahweh will go down on Mount Sinai before the eyes of all the people.