“And if the priest see that, behold, the scab spreadeth in the skin, then the priest shall pronounce him unclean: it is a leprosy.”
King James Version (KJV)
13:6 Dark - Contrary to the white colour of the leprosy. But the word may be rendered, have contracted itself, and thus the opposition seems to be most clear as the spreading of itself. He shall wash his clothes - Though it was no leprosy, to teach us, that no sin is so small as not to need to be washed by the blood of Christ, which was the thing designed by all these washings.
13:10 White in the skin - With a preternatural and extraordinary whiteness. Raw flesh - This shewed it was not a superficial leprosy but one of a deeper and more malignant nature, that had eaten into the very flesh, for which cause it is in the next verse called an old or inveterate leprosy.