'Skin' in the Bible

But any which have no skin-plates or wings for swimming, you may not take; they are unclean for you.

“Be careful in a case of infectious skin disease, following carefully everything the Levitical priests instruct you to do. Be careful to do as I have commanded them.

"The LORD will afflict you with the boils of Egypt, with tumors, skin disease, and festering rashes, and none of them will be curable.

The Lord will send a skin disease, attacking your knees and your legs, bursting out from your feet to the top of your head, so that nothing will make you well.