James 3:2-4

2For we all stumble in many ways. If someone does not stumble in what he says, he is a perfect individual, able to control the entire body as well.

3And if we put bits into the mouths of horses to get them to obey us, then we guide their entire bodies.

4Look at ships too: Though they are so large and driven by harsh winds, they are steered by a tiny rudder wherever the pilot’s inclination directs.