43 For a good tree bringeth not foorth corrupt fruit: neither doeth a corrupt tree bring foorth good fruit.
44 For euery tree is knowen by his owne fruit: for of thornes men doe not gather figs, nor of a bramble bush gather they grapes.
45 A good man out of the good treasure of his heart, bringeth foorth that which is good: and an euill man out of the euill treasure of his heart, bringeth foorth that which is euill: For of the abundance of the heart, his mouth speaketh.
Lk 6:43-45
All scripture is given by inspiration of God and is profitable for doctrine, reproof, correction, and instruction in righteousness (2 Timothy 3:16).