In "God's Word for Today" David Fry writes:
When Jesus touched the leper, rather than becoming unclean, the leper was cleansed. This tells us that Jesus cannot be contaminated with sin or disease. As the Apostle Paul said to Timothy, God likewise has “not given us the spirit of fear; but of power, and of love, and of a sound mind” (2 Tim. 1:7). Believers do not have to fear contamination as long as they are living confidently in Jesus Christ.
Discussion: How has the church at times avoided ministering to people in need because the church fears the "stain" of the people's sin and worldliness?
Discussion: How does 2 Timothy 1:7 give you confidence, in place of fear, to live and serve in the midst of an unholy world?
Source: Miracles of Jesus: Adult Teacher's Insights, page 30.