Exodus 19:20-22

International Standard Version

²⁰ When the Lord came down on Mount Sinai to the top of the mountain, he^[a] summoned Moses to the top of the mountain, and Moses went up.

²¹ The Lord told Moses, “Go down and warn the people so they don’t break through to look at the Lord, and many of them perish.^{[b] 22} Even the priests who approach the Lord must consecrate themselves. Otherwise, the Lord will attack them.”