Pam had that one nailed. Most everyone can talk, but many can’t be understood. Proper training in appropriate speech is absolutely necessary. Does the Bible address it? Glad you asked.
My mouth shall speak wisdom; the meditation of my heart shall be understanding.
Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear.
Before you open your mouth, give this some consideration.
Gary