Odd bible trivia.
The Word "Anger" is used 270 times in the NIV bible. 257 times in the old testement, and 13 times in the new testement. Two of the quotes in Hebrews are direct quotes of the Psalms.
In Mark 3:5, Christ is Angry about the legalism of the Pharisees. "He looked around at them in anger and, deeply distressed at their stubborn hearts, said to the man, "Stretch out your hand." He stretched it out, and his hand was completely restored."
The word "Angry" has a simularly lopsided distribution being used 110 times in the old testement, and 10 times in the new. Most of the new testement references are either parables discribing people, or encouragement not to become angry.
Basically my understanding is that Anger is God's job, not ours.