Deuteronomy 4:15-19

15Be very careful, then, because you saw no form at the time the Lord spoke to you at Horeb from the middle of the fire.

16I say this so you will not corrupt yourselves by making an image in the form of any kind of figure. This includes the likeness of a human male or female,

17any kind of land animal, any bird that flies in the sky,

18anything that crawls on the ground, or any fish in the deep waters of the earth.

19When you look up to the sky and see the sun, moon, and stars – the whole heavenly creation – you must not be seduced to worship and serve them, for the Lord your God has assigned them to all the people of the world.