Matthew 12:33-37

³³Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.

³⁴O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.

³⁵A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.

³⁶But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.

³⁷For by thy words thou shalt be justified, and by thy words thou shalt be condemned.

(King James Version)