Matthew 7:18 in the World English Bible
A good tree can’t produce evil fruit, neither can a corrupt tree produce good fruit.
Context
17 Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.
18 A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
19 Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.