Deuteronomy 9:15-18

So I turned and came down the mountain that was burning with fire, and the two stone tablets with the Agreement were in my hands. When I looked, I saw you had sinned against the LORD your God and had made an idol in the shape of a calf. You had quickly turned away from what the LORD had told you to do. So I took the two stone tablets and threw them down, breaking them into pieces right in front of you. Then I again bowed facedown on the ground before the LORD for forty days and forty nights; I did not eat bread or drink water. You had sinned by doing what the LORD said was evil, and you made him angry.