Leviticus

Contains rules and instructions for rituals, offerings, and how to live a holy life. ... click to read full summary of this book.

And if it spread much abroad in the skin, then the priest shall pronounce him unclean: it is a plague.

If it spreads widely on the skin, the priest will say it's unclean - it's a disease.

* Work in progress - there may be occasional inaccuracies