Proverbs 18 verse 20 - 21 (NIV)
"From the fruit of their mouth a person’s stomach is filled with the harvest of their lips they are satisfied. The tongue has the power of life and death, and those who love it will eat its fruit."
Our tongue can be used for good in order to edify or it can be used for bad, to bring down and destroy. As Christians we must choose to use our tongue to bring good fruit such as encouragement, prayers, healing, testimonies.