Matthew 12:33-35
Matthew 12: 33 to 35
33 Either make the tree good and its fruit good, or else make the tree corrupt and its fruit corrupt; for the tree is known by [its] fruit.
34 Offspring of vipers! How can you, being evil, speak good things? For out of the abundance of the heart the mouth speaks.
35 A good man out of the good treasure of the heart brings out good things; and an evil man out of the evil treasure brings out evil things.