Exodus 19:9-11

Revised Geneva Translation

⁹ And the LORD said to Moses, “Lo, I will come to you in a thick cloud, so that the people may hear while I talk with you, and so that they may also believe you forever.” For Moses had told the words of the people to the LORD.

¹⁰ Moreover, the LORD said to Moses, “Go to the people and sanctify them, today and tomorrow; and let them wash their clothes.

¹¹ “And let them be ready on the third day. For on the third day the LORD will come down, in the sight of all the people, upon Mount Sinai.