Exodus 19:21-23

New Revised Standard Version Catholic Edition

²¹ Then the Lord said to Moses, “Go down and warn the people not to break through to the Lord to look; otherwise many of them will perish. ²² Even the priests who approach the Lord must consecrate themselves or the Lord will break out against them.” ²³ Moses said to the Lord, “The people are not permitted to come up to Mount Sinai; for you yourself warned us, saying, ‘Set limits around the mountain and keep it holy.’”