Luke 6:43

For a good tree does not produce unsound fruit; nor does an unsound tree produce good fruit.

Even now the ax is lying at the root of the trees: therefore, every tree that does not bring forth good fruit is cut down and thrown into the fire.

By their fruits you will know them. Are grapes gathered from thorns, or figs from thistles?

Either make the tree good, and its fruit good; or make the tree unsound, and its fruit unsound. For by the fruit the tree is known.

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