Deut 4:12-18

12Then the Lord spoke to you out of the fire. You heard the sound of words but saw no form; there was only a voice.13He declared to you his covenant, which he charged you to observe, that is, the ten commandments; and he wrote them on two stone tablets.14And the Lord charged me at that time to teach you statutes and ordinances for you to observe in the land that you are about to cross into and occupy.15Since you saw no form when the Lord spoke to you at Horeb out of the fire, take care and watch yourselves closely,16so that you do not act corruptly by making an idol for yourselves, in the form of any figure—the likeness of male or female,17the likeness of any animal that is on the earth, the likeness of any winged bird that flies in the air,18the likeness of anything that creeps on the ground, the likeness of any fish that is in the water under the earth.