Deuteronomy 9:15-18

So I turned and came down from the mount, and the mount was burning with fire: and the two tables of the covenant were in my two hands. And I looked, and, behold, ye had sinned against Jehovah your God; ye had made you a molten calf: ye had turned aside quickly out of the way which Jehovah had commanded you. And I took hold of the two tables, and cast them out of my two hands, and brake them before your eyes. And I fell down before Jehovah, as at the first, forty days and forty nights; I did neither eat bread nor drink water; because of all your sin which ye sinned, in doing that which was evil in the sight of Jehovah, to provoke him to anger.