Exodus 19:12
You shall set bounds to the people all around, saying, 'Be careful that you don't go up onto the mountain, or touch its border. Whoever touches the mountain shall be surely put to death.
Exodus 10:28
Pharaoh said to him, "Get away from me! Be careful to see my face no more; for in the day you see my face you shall die!"
Exodus 19:21
Yahweh said to Moses, "Go down, warn the people, lest they break through to Yahweh to gaze, and many of them perish.
Exodus 19:23
Moses said to Yahweh, "The people can't come up to Mount Sinai, for you warned us, saying, 'Set bounds around the mountain, and sanctify it.'"
Exodus 34:12
Be careful, lest you make a covenant with the inhabitants of the land where you are going, lest it be for a snare in the midst of you:
Deuteronomy 2:4
Command the people, saying, 'You are to pass through the border of your brothers the children of Esau, who dwell in Seir; and they will be afraid of you: take good heed to yourselves therefore;
Deuteronomy 4:9
Only take heed to yourself, and keep your soul diligently, lest you forget the things which your eyes saw, and lest they depart from your heart all the days of your life; but make them known to your children and your children's children;
Joshua 3:4
Yet there shall be a space between you and it, about two thousand cubits by measure. Don't come near to it, that you may know the way by which you must go; for you have not passed this way before."
Hebrews 12:20-21
for they could not stand that which was commanded, "If even an animal touches the mountain, it shall be stoned;"