Matthew 5:37 ESV

Let what you say be simply ‘Yes’ or ‘No’; anything more than this comes from evil.

ROM 2:1 ESV

Therefore you have no excuse, O man, every one of you who judges. For in passing judgment on another you condemn yourself, because you, the judge, practice the very same things.

COL 4:5-6 ESV

Walk in wisdom toward outsiders, making the best use of the time. Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer each person.