Luke 6:45

²³Keep your heart with all diligence, for out of it is the wellspring of life.

³⁴You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks. ³⁵The good man out of his good treasure^[+] brings out good things, and the evil man out of his evil treasure brings out evil things. ³⁶I tell you that every idle word that men speak, they will give account of it in the day of judgment. ³⁷For by your words you will be justified, and by your words you will be condemned.”

²⁹Let no corrupt speech proceed out of your mouth, but only what is good for building others up as the need may be, that it may give grace to those who hear.

³⁸He who believes in me, as the Scripture has said, from within him will flow rivers of living water.”

³⁰The mouth of the righteous talks of wisdom. His tongue speaks justice. ³¹The law of his God is in his heart. None of his steps shall slide.

¹²For the sin of their mouth, and the words of their lips, let them be caught in their pride, for the curses and lies which they utter.

²Your tongue plots destruction, like a sharp razor, working deceitfully. ³You love evil more than good, lying rather than speaking the truth. Selah. ⁴You love all devouring words, you deceitful tongue.

¹⁶Let the word of Christ dwell in you richly; in all wisdom teaching and admonishing one another with psalms, hymns, and spiritual songs, singing with grace in your heart to the Lord.

⁶Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.

¹⁰“For this is the covenant that I will make with the house of Israel after those days,” says the Lord: “I will put my laws into their mind; I will also write them on their heart. I will be their God, and they will be my people.