And the LORD said to Moses, "Go down and warn the people, lest they break through to gaze at the LORD, and many of them perish.
Exodus 19:21
Surrounding context
19:20 Then the LORD came down upon Mount Sinai, on the top of the mountain. And the LORD called Moses to the top of the mountain, and Moses went up.
19:21 And the LORD said to Moses, "Go down and warn the people, lest they break through to gaze at the LORD, and many of them perish.
19:22 Also let the priests who come near the LORD consecrate themselves, lest the LORD break out against them."