Life starts with contamination. It starts out dirty. Childbirth is messy. It’s not sinful; it’s just a fact of life.
The general Bible term for infections of skin and surfaces is “leprosy,” but it covers a host of conditions. It’s also a good parable for “rot” in our character — if the lesson isn’t taken too far.
The Torah reading תזריע Tazria (“she will conceive,” Leviticus 12–13) is concerned about what is physically dirty vs. clean, but the LORD’s lesson for us is more than skin-deep.
In 2nd Kings 5, we should see a connection between Yeshua (Jesus) and Elisha the prophet. Aramite captain Naaman, a pagan, was not the only one being examined in his healing from leprosy. The king of Israel and Elisha’s servant Gehazi were also being examined or tested.
In an account of Yeshua’s healing 10 lepers, only a Samaritan, a “foreigner,” returned to give God praise. Both Naaman and the Samaritan paid spiritually by having to acknowledge that salvation comes from Israel, not from their false views of God.