Lev. 12-14
For the Israelites traveling through the wilderness, they relied upon the priesthood to determine their state of health. Priests would examine skin and hair to evaluate their condition. They were given a specified amount of time to allow their body to heal itself, and then be re-evaluated by the priest. Those pronounced clean could return to normality. Those unclean were quarantined. During their separation, the body could either heal itself or become more diseased.
God amazingly designed our bodies with built-in healing capabilities. He gave us water for cleansing. He gave us laws and spiritual leaders to guide us into healthy living. Discounting or avoiding the value of a right relationship with God is not wise.
The fulfillment of all right-standing with God is found in Christ Jesus. “In His Name” we are healed. [John 16:4] “The prayer of faith shall save the sick.” [James 5:15]