Bohaq (בֹּהַק) appears only once in Scripture (Leviticus 13:39) in the context of priestly inspection of skin conditions. It refers to a harmless white spot or freckle on the skin — a condition that resembles leprosy (tzara'at) in color but is distinguished by being 'dull white,' causing no defilement. The priest's diagnosis of bohaq rather than tzara'at would clear the person, allowing them to remain in the community.
The detailed skin-inspection laws of Leviticus 13-14 served multiple purposes: medical (preventing contagion), social (protecting community), and theological (illustrating the principle of holiness). The careful distinction between bohaq (harmless) and tzara'at (defiling) teaches discernment — not everything that looks like impurity is impurity, and not everything that looks clean is clean. The priest's role as diagnostician prefigures the discernment ministry: distinguishing between what truly separates from God and what merely resembles it.