James 1:19-21, 26

Understand this, my beloved brothers and sisters. Let everyone be quick to hear [be a careful, thoughtful listener], slow to speak [a speaker of carefully chosen words and], slow to anger [patient, reflective, forgiving]; for the [resentful, deep-seated] anger of man does not produce the righteousness of God [that standard of behavior which He requires from us]. So get rid of all uncleanness and all that remains of wickedness, and with a humble spirit receive the word [of God] which is implanted [actually rooted in your heart], which is able to save your souls.

If anyone thinks himself to be religious [scrupulously observant of the rituals of his faith], and does not control his tongue but deludes his own heart, this person’s religion is worthless (futile, barren).