(EXO. 34: 28) So he was there with the LORD forty days and forty nights; he neither ate bread nor drank water. And He wrote on the tablets the words of the covenant, the Ten Commandments.
(DEU. 5: 1-21) … 2 The LORD our God made a covenant with us in Horeb. 3 The LORD did not make this covenant with our fathers, but with us, those who are here today, all of us who are alive. 4 The LORD talked with you face to face on the mountain from the midst of the fire. 5 I stood between the LORD and you at that time, to declare to you the word of the LORD; for you were afraid because of the fire, and you did not go up the mountain. He said… [lists the Ten Commandments].
(DEU. 9: 9) When I went up into the mountain to receive the tablets of stone, the tablets of the covenant which the LORD made with you, then I stayed on the mountain forty days and forty nights. I neither ate bread nor drank water.
(DEU. 9: 11) And it came to pass, at the end of forty days and forty nights, that the LORD gave me the two tablets of stone, the tablets of the covenant.
(DEU. 9: 15) So I turned and came down from the mountain, and the mountain burned with fire; and the two tablets of the covenant were in my two hands.