[20] And the LORD came down upon mount Sinai, on the top of the mount: and the LORD called Moses up to the top of the mount; and Moses went up. [21] And the LORD said unto Moses, Go down, charge the people, lest they break through unto the LORD to gaze, and many of them perish. [22] And let the priests also, which come near to the LORD, sanctify themselves, lest the LORD break forth upon them.