James 3:3-5

Now if we put the bits into the horses’ mouths so that they will obey us, we direct their entire body as well. Look at the ships also, though they are so great and are driven by strong winds, are still directed by a very small rudder wherever the inclination of the pilot desires. So also the tongue is a small part of the body, and yet it boasts of great things. S ee how great a forest is set aflame by such a small fire!