Deuteronomy 9:9-10

When I went up into the mount to receive the tables of stone, the tables of the covenant which the Lord made with you: and I continued in the mount forty days and nights, neither eating bread, nor drinking water.

And the Lord gave me two tables of stone written with the finger of God, and containing all the words that he spoke to you in the mount from the midst of the fire, when the people were assembled together.