Either make the tree good, and his fruit good also, or else make the tree evil, and his fruit evil also. For the tree is known by his fruit.

Even so, every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.

A good tree cannot bring forth bad fruit: nor yet a bad tree can bring forth good fruit.

and spied a fig tree in the way, and came to it, and found nothing thereon, but leaves only, and said to it, "Never fruit grow on thee hence forwards." And anon the fig tree withered away.

Even now is the axe put unto the root of the trees: so that every tree which bringeth not forth good fruit is hewn down, and cast into the fire.