'Contentment' in the Bible

But godliness actually is a source of great gain when accompanied by contentment [that contentment which comes from a sense of inner confidence based on the sufficiency of God].

You are jealous and covet [what others have] and your lust goes unfulfilled; so you murder. You are envious and cannot obtain [the object of your envy]; so you fight and battle. You do not have because you do not ask [it of God].