but he who holds his tongue is wise.” (Prov 10:19)
The likelihood of saying something stupid or sinful (or both) rises in direct proportion to the number of words you say, so let your words be few.
Hold your tongue until you’ve heard what others have to say. “The first to present his case seems right, till another comes forward and questions him (Prov. 18:17). We often speak first believing that the first to speak, the quick to speak, have the advantage. Wrong. Whoever talks last sounds the smartest because he or she gets to reflect on the words of those dumb enough to talk first.
Hold your tongue until you’ve thought about what you want to say and how you want to say it. Are your words going to build up and edify others? If not, the Bible tells you not to say them (Ephesians 4:29).