James 3:2

Let not many of you be teachers, my brothers, knowing that we will receive heavier judgment.

Indeed, we put bits into the horses’ mouths so that they may obey us, and we guide their whole body.

Behold, the ships also, though they are so big and are driven by fierce winds, are yet guided by a very small rudder, wherever the pilot desires.

So the tongue is also a little member, and boasts great things. See how a small fire can spread to a large forest!