Different authors address the subject of the impurity of human nature and its effects. Leprosy, in the Word of God, is an image of sin – both the sin of man in his human nature since the fall, and the sin operating in each man. Every human soul suffers from the same illness and needs the same spiritual remedy. Thus the Word of God always brings newly awakened souls back to the cross of Christ, in which are found the wonderful resources of God for cleansing man from sin. Christians will also find extremely useful practical applications for their life of communion with the Lord and for their communion with one another.