Exodus 19:10 BBE

⁸  And all the people, answering together, said, Whatever the Lord has said we will do. And Moses took back to the Lord the words of the people.

⁹  And the Lord said to Moses, See, I will come to you in a thick cloud, so that what I say to you may come to the ears of the people and they may have belief in you for ever. And Moses gave the Lord word of what the people had said.

¹⁰  And the Lord said to Moses, Go to the people and make them holy today and tomorrow, and let their clothing be washed.

¹¹  And by the third day let them be ready: for on the third day the Lord will come down on Mount Sinai, before the eyes of all the people.

¹²  And let limits be marked out for the people round the mountain, and say to them, Take care not to go up the mountain or near the sides of it: whoever puts his foot on the mountain will certainly come to his death: