How earnest is a child of God, that he should act and live as becometh a child of God. He knows full well, that unless the Lord keep the heart, the lips will utter foolishness. And when the Lord disposeth the soul, the lips will praise him. Job 23:4-6.
Related Commentaries of Psalms 141:3
Psalms 141:3-4
3 Set a watch, O LORD, before my mouth; keep the door of my lips.
4 Incline not my heart to any evil thing, to practise wicked works with men that work iniquity: and let me not eat of their dainties.