God is Slow to Get Angry with Us

A fire burns and consumes. It is called anger—smoldering, flaming, at times white hot. Of all emotions, it may well be among the passionate, for it has the power to fuel hatred and smother love. Anger itself is not bad; it is not wrong. God himself gets angry.

God's anger, however, is directed against sin and unrighteousness. He blazes hot against evil. His anger, like ours, becomes a consuming fire, but its focus is to eradicate the sin, not destroy the sinner. His anger burns away sinfulness and allows the gold to emerge and make us fit for the Master's use.

{Taken from God's Daily Promises - Left Behind mailing list}