Have you ever asked yourself why God takes anger so seriously and urges us to cast it out of our lives?
One reason is because of what it does to other people. When we lash out at someone in anger, we hurt them and create conflict with them- and that is wrong. God also hates our anger because of what it does to us. Anger cuts us off from others; no one likes to be around someone who may explode at any moment, Most of all, anger cuts us off from God, because anger makes us preoccupied with our own problems rather than God's will for our lives.
"As churning the milk produces butter, and as twisting the nose produces blood, so stirring up anger produces strife." Proverbs 30:33