“Bitterness is a root. If roots are nursed—watered, protected, fed, and given attention—they increase in depth and strength. If not dealt with quickly, roots are hard to pull up. The strength of the offense will continue to grow. We are therefore exhorted not to let the sun go down on our wrath. (See Ephesians 4:26.) Now instead of the fruit of righteousness being produced, we will see a harvest of anger, resentment, jealousy, hatred, strife, and discord. Jesus called these evil fruits.”