Two types of anger?
The Bible indicates that a person might hide the truth in anger or hostility (Example: Hosea 9:7). Conversely, person who is constantly angry is probably using anger as an outlet for a deeper internal issue. For example; jealousy toward a partner or bitterness towards a parent or financial problems. It is common for some to have issues with the Father nature of God because of some unresolved dysfunctionality with their earthly father.
Anger is a valid emotion
Anger is a valid emotion to express passion for truth, justice, and ethics as long as one get’s over it quickly. The apostle Paul says, “Be angry, but sin not.” Emotional flare-ups can happen, but if one is in a constant attitude of anger and hostility, that is usually a facade for a deeper unresolved problem.
Outcomes of long term anger
The long term outcomes of anger are many including frequent friendship issues, the loss of true friends and psychiatric problems, physical illness and the loss of family relationships and spiritual issues from unclean spirits.
God get’s angry:
"For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth." (Rom 1:18 ESV)
"Whoever believes in the Son has eternal life; whoever does not obey the Son shall not see life, but the wrath of God remains on him." (John 3:16)