Deuteronomy 4:15-16

The Nature of Israel’s God

4:15 Be very careful, then, because you saw no form at the time the Lord spoke to you at Horeb from the middle of the fire. 4:16 I 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,

Deuteronomy 15:21

15:21 If they have any kind of blemish – lameness, blindness, or anything else – you may not offer them as a sacrifice to the Lord your God.

Deuteronomy 22:9

Illustrations of the Principle of Purity

22:9 You must not plant your vineyard with two kinds of seed; otherwise the entire yield, both of the seed you plant and the produce of the vineyard, will be defiled.