A good tree cannot bring forth evil fruit, neither can an evil tree bring forth good fruit.
For the flesh lusteth against the spirit: and the spirit against the flesh; for these are contrary one to another: so that you do not the things that you would.
Even so every good tree bringeth forth good fruit, and the evil tree bringeth forth evil fruit.
Every tree that bringeth not forth good fruit, shall be cut down, and shall be cast into the fire.
For there is no good tree that bringeth forth evil fruit; nor an evil tree that bringeth forth good fruit.