Luke 6:43-46 - The Sermon On The Plain: Trees And Their Fruit
43 No sound tree bears rotten fruit, nor again does a rotten tree bear sound fruit: 44 each tree is known by its fruit. Figs are not gathered from thorns, and grapes are not plucked from a bramble-bush. 45 The good man produces good from the good stored in his heart, and the evil man evil from his evil: for a man's mouth utters what his heart is full of.
46 Why call me, 'Lord, Lord!' and obey me not?