"'Be angry, and don't sin.' Don't let the sun go down on your wrath."
— Ephesians 4:26
Historical Context
Paul acknowledges that anger is a natural human emotion, but warns the Ephesian church that harboring it overnight gives the devil a foothold in their lives.
Daily Application
It is okay that you are upset, but put a time limit on it. Do what you must to process and release your bitterness before you go to sleep tonight.