Exodus 19:9-11

Douay-Rheims 1899 American Edition

⁹ The Lord said to him: Lo, now will I come to thee in the darkness of a cloud, that the people may hear me speaking to thee, and may believe thee for ever. And Moses told the words of the people to the Lord.

¹⁰ And he said to him: Go to the people, and sanctify them to day, and to morrow, and let them wash their garments.

¹¹ And let them be ready against the third day: for on the third day the Lord will come down in the sight of all the people upon mount Sinai.