Matthew 12:34 says, “…For out of the abundance of the heart the mouth speaks.” The words that come out of our mouth are from our thoughts. 

Matthew 15:18-19 says, “But those things which proceed out of the mouth come from the heart, and they defile a man. For out of the heart proceed evil thoughts…”

Inner defilement causes serious spiritual heart disease. Hebrews 12:15 says that when we allow bitter roots to spring up, they defile everyone around us. Peter told Simon that he was poisoned by bitterness. Acts 8:23

In my first book, Freedom! From Past Hurts, chapter 10 is titled Inner Defilement. We often believe that we have been defiled by something that happened to us. However, it is our negative caustic outlook that defiles from within. Keeping a record of wrongs defiles and blocks love from flowing in or out.