Anger is a strong emotional response. Everyone can be angry, just like everyone can be happy. Anger arises when a person feels that their personal boundaries are or will be violated. Angry people also experience physical conditions such as increased heart rate and elevated blood pressure. Although anger seems to be a harmless, normal emotion expressed in daily life, it can still have a negative effect on physical, psychological and spiritual aspects in many ways. Humans can’t avoid anger. Research has shown that anger can be harmful. If people ignore it, anger will not go away, it will cause more problems. Therefore, people should notice all these side effects and anger. Anger produces a lot of physical and psychological consequences. Why do people get angry? Because every day people may encounter something that affects their emotions, and if things affect too much, they become angry. Some people are offended by others. Why is it so hard for people to control their anger? Because people have sinned. In the book of genesis, a long time ago, when Adam and eve left the garden of Eden, they had two sons. Abel was a shepherd. Cain was a farmer. And it came to pass, that in the day of the offering of god, Cain brought forth some of the fruit of the earth unto god. Abel gave some of the best milk sheep. When god saw Abel and his offering, he did not see Cain and his gifts. Cain was very angry. His face sank. The Lord said to Cain, “why are you so angry and your face changed? If you do well, you will be accepted. On the contrary, sin is like a demon lurking in front of your door. It is waiting for you, you will be controlled by it. Cain said to his brother Abel, “let’s go out into the wild.” And when they were there, Cain slew his brother. God asked Cain, “where is your brother Abel?” Cain replied, “I don’t know. I don’t protect him. God said, “what did you do?” Listen! Your brother’s blood cries out to me from the ground. You are accused, you will be exiled, you will be expelled from this land, and you will devour the blood of your slain brother. You will sow the land, and the earth will not grow. You will be a tramp and wanderer. Cain said to god, “I cannot bear such punishment. If you drive me out of here today, I won’t be in front of you again. I will be a wanderer, and all who meet me will kill me. God replied, “no, if someone kills Cain, he will be punished sevenfold. God gave Cain a sign that he would not be killed by those who met him. So Cain went out from god and came to the land of nod, east of Eden. Cain is angry (genesis 4). Because of the root of anger, it affects the body, mind and spirit.