'Quick tempered' in the Bible

A quick-tempered man acts foolishly,And a man of evil devices is hated.

Being slow to get angry compares to great understanding as being quick-tempered compares to stupidity.

A quick-tempered person stirs up dissension, but one who is slow to anger calms a quarrel.

For the overseer must be above reproach as God’s steward, not self-willed, not quick-tempered, not addicted to wine, not pugnacious, not fond of sordid gain,