See to it that no one falls short of the grace of God; and see to it that no bitter root springs up and causes trouble, and by it many be defiled. (TLV) Hebrews 12:15
Nosh: Unresolved btterness towards others is like a contagious disease. The longer one has it the more it makes sick the embittered person as well as infecting and defiling those around them with a divisive and negative spirit. It is essential that we quickly resolve held bitterness towards others and also choose to minimize or, if possible, avoid those who are carrying such a spiritual infection.