4 Bible Verses about Let Your Speech Be Good

let no obscene language defile your mouth, use only such as tends to edification, that it may be beneficial to the hearers.

let an air of modesty appear in all your discourse; and let it be seasoned with discretion, in making a proper reply, when you are call'd into question.

speak and act as those, who are to be judged by the law of liberty.

don't give occasion to any to despise your youth: but be a pattern to believers in your discourse, in your behaviour, by your charity, faith and chastity.