"The Kindness and Severity of God"

In the Haftarah paired with this week's parasha "Tazria," we see two stories of apparently opposite behavior by the prophet, Elisha (the successor of Elijah). A very "relaxed" standard toward a certain instance of idol worship by Naaman, followed by a very severe standard his servant Gehazi when he sought to enrich himself. If we read deeply, we find clear reasons for the vast difference in kindness vs. severity.