Ulangan 14:11

14:11 All ritually clean birds you may eat.

Ulangan 23:9

Purity in Personal Hygiene

23:9 When you go out as an army against your enemies, guard yourselves against anything impure. ¹ 

Ulangan 28:24

28:24 The Lord will make the rain of your land powder and dust; it will come down on you from the sky until you are destroyed.

[23:9]  ¹ tn Heb “evil.” The context makes clear that this is a matter of ritual impurity, not moral impurity, so it is “evil” in the sense that it disbars one from certain religious activity.