Because you saw no form at all on the day the LORD spoke to you at Horeb from the midst of the fire, be strictly on your guard not to act corruptly by fashioning an idol for yourselves to represent any figure, whether it be the form of a man or of a woman, the form of any animal on the earth, the form of any bird that flies in the sky, the form of anything that crawls on the ground, or the form of any fish in the waters under the earth. And when you look up to the heavens and behold the sun...
Deuteronomy 4:15–19