James 3:2 (NLT)
We all make many mistakes, but those who control their tongues can also control themselves in every other way.
What you say and what you don’t say are both important. To use proper speech you must not only say the right words at the right time but also not say what you shouldn’t. Examples of an untamed tongue include gossiping, putting others down, bragging, manipulating, false teaching, exaggerating, complaining, flattering, and lying.
Before you speak, ask, is what I want to say true? Is it necessary? Is it kind?