You've suffered unjustly. Passed over for the promotion. Mistreated by a spouse. Disrespected by a co-worker, fellow student, or even a member of your church.
Perhaps you lie in bed at night imagining detailed conversations with someone who's wronged you. You daydream about getting back at them. You conspire, hoping to discover ways to embarrass those who've treated you unfairly.
Let go of your bitterness and desire for retaliation.
Romans 12:19 says, "Do not take revenge, my friends, but leave room for God's wrath, for it is written: " Vengeance is mine; I will repay, saith the Lord."
It is not your job to exact revenge. That's God's responsibility. And he does not need our help doing it. If you hoard hatred and bitterness toward those who have hurt you, the injury will only deepened and hurt you even more. Those around you will suffer as well. Bitterness is a poison that spills over into our relationships. Don’t allow the people who have hurt you keep on doing so.