They are parts of the body designed by the Lord to help us communicate our thoughts.
Information is necessary for successful endeavor.
In the book of Genesis we are told that the Lord spoke, and the various parts of the world came into being. How this happened no one knows. The Power of Language Solomon said words have great power for both good and evil. James also wrote of their power. If we put bits into the mouths of horses that they may obey us, we guide their whole bodies.