And the priest shall see him: and, behold, if the plague be turned into white; then the priest shall pronounce him clean that hath the plague: he is clean.
Instructions for priests examining skin conditions to determine ritual cleanliness.
King James Version (public domain)
Traditionally attributed to Moses · c. 13th century BC · The Pentateuch — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — is traditionally attributed to him
15And the priest shall see the raw flesh, and pronounce him to be unclean: for the raw flesh is unclean: it is a leprosy.
16Or if the raw flesh turn again, and be changed unto white, he shall come unto the priest;
17And the priest shall see him: and, behold, if the plague be turned into white; then the priest shall pronounce him clean that hath the plague: he is clean.
18The flesh also, in which, even in the skin thereof, was a boil, and is healed,
19And in the place of the boil there be a white rising, or a bright spot, white, and somewhat reddish, and it be shewed to the priest;