Leviticus 20:25

Christian Standard Bible Anglicised

Therefore you are to distinguish the clean animal from the unclean one, and the unclean bird from the clean one. Do not become contaminated  by any land animal, bird, or whatever crawls on the ground; I have set these apart as unclean for you.

Cross References

Acts 10:28

Peter said to them, ‘You know it’s forbidden for a Jewish man to associate with or visit a foreigner,  but God has shown me that I must not call any person impure or unclean.

Genesis 1:21

So God created the large sea-creatures and every living creature that moves and swarms in the water,  according to their kinds. He also created every winged creature according to its kind. And God saw that it was good.

Leviticus 10:10

You must distinguish  between the holy and the common,  and the clean and the unclean,