We can be blinded by anger. Cain was blinded by anger when the Lord accepted Abels’ offering over Cains’ (Genesis 4:4-8). The consequences of anger cannot be taken back; Cain rose-up and killed his brother.

“For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander.” Mathew 15:19

Jesus said that anger is as murder, “You have heard it said long ago, ‘Do not murder, and anyone who murders will be subject to judgment.’  But I tell you anyone who is angry with his brother will be subject to judgment.”  Mathew 5:21

When you are angry do not sin, do not act upon the anger. Ask the Lord to help you.