Proverbs 23:16
And my reins exult when thy lips speak uprightly.
Proverbs 8:6
Hearken, for noble things I speak, And the opening of my lips is uprightness.
Ephesians 4:29
Let no corrupt word out of your mouth go forth, but what is good unto the needful building up, that it may give grace to the hearers;
Ephesians 5:4
also filthiness, and foolish talking, or jesting, -- the things not fit -- but rather thanksgiving;
Colossians 4:4
that I may manifest it, as it behoveth me to speak;
James 3:2
for we all make many stumbles; if any one in word doth not stumble, this one is a perfect man, able to bridle also the whole body;