For a good tree bringeth not forth corrupt fruit; neither doth a corrupt tree bring forth good fruit.

And now also the ax is laid to the root of the trees: every tree therefore which bringeth not forth good fruit, is hewn down, and cast into the fire.

For every tree is known by its own fruit: for from thorns men do not gather figs, nor from a bramble bush do they gather grapes.

He spoke also this parable: A certain man had a fig-tree planted in his vineyard; and he came and sought fruit on it, and found none.

Then said he to the dresser of his vineyard, Behold, these three years I come seeking fruit on this fig-tree, and find none: cut it down; why cumbereth it the ground?