Again, my mind goes to Isaiah. In Isaiah 3:12, the leaders have led the people astray. If we think we know something so well we can explain it to others, we are responsible for helping them understand it. Luke 12:48 says that to those who are given much, much will be required in return, and when someone is entrusted with much, then earn more will be required. If we are blessed with knowledge and understanding, and share it incorrectly, we are burdened with misleading innocents. if we are entrusted with guiding their souls, we mush do everything in our power to make sure we are on the paths God has set. We will make mistakes. But we must be wise and humble, relying on God to give us what we need to teach others.
While teaching others, we need to be careful of what we say. If we misspeak or deceive, we can harm not only our own soul, but also the souls of others. Our thoughts and words are hard to control. Sometimes things don’t come out the way we meant. Sometimes we slip up and speak before we think. Maybe our emotions get the best of us and we say hurtful or untrue things. As we mature, we get better at controlling our speech, but we all mess up. We have to acknowledge our mistakes, do what we can to make it better, and keep learning and growing and strive to keep working to mature into the people God wants us to be.
The tongue spews what is in our heart. That’s why if we can control it, we have better control over the rest of ourself. Controlling the tongue leas to change of heart, which will in turn lead to more Christ-like speech and actions.