James 3:4-5

4Also, think about ships that sail on the sea. They are very large. Strong winds push them with great power. But we fix a piece of wood at the back of the ship. With this small piece of wood, the master can cause the ship to go anywhere that he wants it to go.

5In the same way, our tongue is a very small part of our body. But it speaks as if it is very great. Think about this. A very small fire can cause even a big forest to burn completely.