Ephesians 4: 29
Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, that it may give grace to those who hear.
God is serious about our words and how we use them. We can use them to build up others or tear them down. The word edification means instruction or enlightenment, especially when it is morally or spiritually uplifting (Encarta Dictionary). So, therefore, we are supposed to use language with each other that is uplifting. If people feel better and/or encouraged after speaking with you, then you are fulfilling the direction and purpose of God. But if people feel frustrated, hurt or bad when they leave your presence, then you are not using your words in a way that God will approve. Language is a powerful tool that we have for good or for ill. It is so powerful and so important that it is the weapon that God gave us with which to battle our enemies. He didn’t give us lightning bolts or fire balls that shoot from our fingertips. He gave us his most powerful weapon; words. Each of us must make wise choices with this awesome power.