Bible verses about staying calm

Keep your heart with all diligence, for out of it is the wellspring of life.

He who is slow to anger has great understanding, but he who has a quick temper displays folly.

Don’t be hasty in your spirit to be angry, for anger rests in the bosom of fools.

Anxiety in a man’s heart weighs it down, but a kind word makes it glad.

A cheerful heart makes good medicine, but a crushed spirit dries up the bones.