Is all anger sin? Jesus was angry when he turned over the money-changers’ tables (Matthew 21:12-13) and he was angry with the Pharisees for their hard hearts (Mark 3:1-5). There is an anger without sin (Ephesians 4:26-27). The anger of mourning or for the injustice of the world is not necessarily sinful. We do need to be careful with our anger (Proverbs 15:18), because anger at people can cause us to sin. It is the root of murder. Jesus showed that although most of us may have never actually committed murder in the letter, we are guilty of breaking the spirit of the law in any unrighteous anger.