The tongue may be small, but it is most certainly powerful. We should never be people who say that He is the Lord of our lives, but not the Lord of our lips. "Out of the abundance of the heart so the mouth speaks." Oftentimes our actions are a representation of the heart. When we truly let Christ work in our lives, evidence of His love and grace is manifested by our actions, and, in particular in our words.
Scripture References: James 3:1-12 , 1 Timothy 4 , James 3 , Proverbs 24 , Proverbs 4 , Proverbs 6