Mount Sinai was completely enveloped in smoke because the Lord came down on it in fire. Its smoke went up like the smoke of a furnace, and the whole mountain shook violently.
So Moses stretched out his staff towards heaven, and the Lord sent thunder and hail. Lightning struck the land, and the Lord rained hail on the land of Egypt.
I saw how you had sinned against the Lord your God; you had made a calf image for yourselves. You had quickly turned from the way the Lord had commanded for you.