James 3:8

8. Tongue can no man tame Augustine says, that never, but by the grace of God, has any tongue been tamed. It may be replied that worldly self-interest often tames the tongue as effectually as divine wisdom. As to that, however, it may be asked, To what does worldly prudence tame the tongue? And it may be answered, It tames the tongue to a subdued but still wild and depraved state. Nothing but the grace of God tames the tongue to that docility to which our apostle alludes, submission to the divine law, and the hearty utterance of a holy confession.