Swearing

37Just say a simple, 'Yes, I will,' or 'No, I won't.' Anything beyond this is from the evil one.

Teaching about Revenge

Matthew 5:33-37

29Don't use foul or abusive language. Let everything you say be good and helpful, so that your words will be an encouragement to those who hear them.

Ephesians 4:29

45A good person produces good things from the treasury of a good heart, and an evil person produces evil things from the treasury of an evil heart. What you say flows from what is in your heart.

Building on a Solid Foundation

Luke 6:45

10And so blessing and cursing come pouring out of the same mouth. Surely, my brothers and sisters, this is not right!

James 3:10

21The tongue can bring death or life;

those who love to talk will reap the consequences.

Proverbs 18:21