Anger is not necessarily sinful. It is a natural emotion granted by God to help man protect himself and preserve what is important. This is called righteous indignation and it can be seen throughout the Bible. However, anger can also become a sinful trap door that allows the devil to wreak havoc. But how does anger become sin? This book examines three aspects of anger: 1] the reason for anger, 2] the extent of anger, and 3] the length of anger.