righteous anger from ephesians 4

Anger is an acid that can do more harm to the vessel in which it is stored than to anything onto which it is poured.

“I never work better” Martin Luther once said, “than when I am inspired by anger; for when I am angry, I can write, pray, and preach well, for then my whole temperament is quickened, my understanding ...

Anger is never without a reason, but seldom with a good one.