​Introduction A. As we have seen already, the church in Corinth needed to get rid of some things that were threatening to destroy them. B. Are there some things we need to remove from our lives? I. What is leaven? A. Physically speaking, it is an agent that causes bread dough to rise (Matthew 13:33). B. In spiritual applications, leaven often represents corruption (1 Corinthians 5:8; Matthew 16:6-12; Luke 12:1). C. The effects of leaven become...