The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.
Behold, God will not cast away a perfect man, neither will he help the evil doers: / Till he fill thy mouth with laughing, and thy lips with rejoicing.
For the sin of their mouth and the words of their lips let them even be taken in their pride: and for cursing and lying which they speak.
He who conceals his hatred has lying lips
He who guards his lips guards his soul
Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding. (Proverbs 17:28)