Now viewing scripture range from the book of Matthew chapter 7:16
through chapter 7:18...
16 Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?
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.