The answer is: Leprosy

Num 12:9-10

In Numbers 12, we witness a profound moment in the life of Miriam, the sister of Moses, encountering a divine repercussion for her actions. Miriam, along with Aaron, challenges Moses regarding his wife and, by extension, his leadership. This collective questioning gives an interesting window into dynamics within early Israelite society, revealing the roles and power struggles among key figures under God's organization's canopy.

When Miriam becomes leprous, and she's described beginning to be "as white as snow," this affliction can also symbolize spiritual blindness or separation from the community. In Hebrew culture, leprosy wasn't merely a physical ailment—it functioned as a social and spiritual marker. Those struck by leprosy were often ostracized, requiring them to distance themselves from others to avoid actual or ritual contamination. This incident illustrates the seriousness of undermining appointed leadership and emphasizes the spiritual bond that the community shared.

Interestingly, the story resonates with ancient purification rituals found throughout the Old Testament. Compellingly, it offers us an echo to later New Testament themes of healing and restoration. Despite facing immediate social exile, divine mercy is evident as Moses intercedes for Miriam, showing a framework within these sacred texts that wasn't just about punishment but also about grace and eventual reconciliations.

Miriam did eventually recover, rejoining her people, which demonstrates the possibility of transformation—a poignant reminder that no mistake closes the door on future healing and hope!