Leviticus 13 & 14 tell us of God’s various laws for identifying and dealing with leprosy. As I read them they spoke to me of more than leprosy. Leprosy is a disfiguring skin disease that in time causes limbs to be damaged and deformed and body parts to be lost such as the ends of fingers and toes.
Leprosy acts in the physical as sin does in the spiritual. Sin disfigures us from who God made us to be. It damages and deforms us, causing us to lose healthy parts of ourself.
In the two chapters we read today in Leviticus one test used to see if a disease was leprosy was to see whether it spread ( e.g Chapter 13 verses 27 & 28). Sin acts like leprosy. It always spreads, gets bigger and more far reaching if we don’t deal with it.
Paul points this out in 1 Corinthians 5: 6, addressing a prideful attitude the Corinthians had despite sexual sin in their midst. In addressing their pride he said:
6 Your glorying is not good. Do you not know that a little leaven leavens the whole lump?
His point was a little pride spreads and if not dealt with will soon overtake a person and a community of believers. This is true of all sin if it is not dealt with. Like the hallmark of leprosy in Leviticus 13 & 14 it spreads, and like leprosy as it does it damages, deforms and destroys.
What leprosy is in the physical, sin is in the spiritual. Sin is spiritual leprosy.