Exodus 19:23 DBY

²¹  And Jehovah said to Moses, Go down, testify to the people that they break not through to Jehovah to gaze, and many of them perish.

²²  And the priests also, who come near to Jehovah, shall hallow themselves, lest Jehovah break forth on them.

²³  And Moses said to Jehovah, The people cannot come up to mount Sinai; for thou hast testified to us, saying, Set bounds about the mountain, and hallow it.

²⁴  And Jehovah said to him, Go, descend, and thou shalt come up, thou, and Aaron with thee; but the priests and the people shall not break through to go up to Jehovah, lest he break forth on them.

²⁵  So Moses went down to the people, and told them.