Exodus 34:2-4

2Be ready by the morning, and come up in the morning to Mount Sinai, and present yourself there to me on the top of the mountain.

3No one shall come up with you, and let no one be seen throughout all the mountain. Let no flocks or herds graze opposite that mountain."

4So Moses cut two tablets of stone like the first. And he rose early in the morning and went up on Mount Sinai, as the Lord had commanded him, and took in his hand two tablets of stone.