We all make many mistakes. For if we could control our tongues, we would be perfect and could also control ourselves in every other way. (James 3:2, NLT)
Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen. And do not grieve the Holy Spirit of God. (Ephesians 4:29-30, NIV)
Set a guard over my mouth, Lord; keep watch over the door of my lips. (Psalm 141:3, NIV)
I will watch my ways and keep my tongue from sin; I will put a muzzle on my mouth. (Psalm 39:1, NIV)
Jesus said, “The things that come out of a person’s mouth come from the heart, and these defile them.” (Matthew 15:18, NIV)
Father, set a guard over my lips and help me to speak only words that are pleasing to You. Free me from defensive, angry, foolish, sensual, or impure speech. Keep me from quenching the Spirit with my words. I set my heart not to sin with my speech that I may sustain unbroken communion with you.
— Mike Bickle