'Spots' in the Bible

“When a man or a woman has bright spots on the skin of the body, even white bright spots,

then the priest shall look, and if the bright spots on the skin of their bodies are a faint white, it is eczema that has broken out on the skin; he is clean.

“Can the Ethiopian change his skinOr the leopard his spots?Then you also can do goodWho are accustomed to doing evil.