Messiah’s House · The Poison of Bitterness – Jason Craft Bitterness is a “sleeper sin” because it grows beneath the surface, deep down in the soil of our hearts. The Author of Hebrews makes it clear that a bitter root will one day sprout and when it does, many will become defiled. In other words, if a bitter root keeps growing, there will be a harvest of pain for you and all the people in your world. Listen to this message and learn how to both spot and overcome a bitter root in your heart.