And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus. They hurt us and those around us. Bad habits will cause us physical pain, and bad relationships will cause us mental and spiritual pain. Gall is a bitter, greenish fluid secreted by the liver and stored in the gallbladder. It is something that is hitter or distasteful a bitter feeling.
Wormwood is a strong smelling plant that yields a bitter tasting dark green oil.
It also means any bitter, unpleasant or mortifying experience. The root of bitterness and the root that beareth gall and wormwood are connected. The problem with bitterness is that instead of hurting the one whom you are bitter against, you are the one that suffers, Bitterness will literally make you sick in body, much less in spirit. Perhaps the experience that has made us so very bitter is one that God allowed in our life to make us tender. God cannot plant in hard, dry ground.