Luke 6:44
“For every tree is known by his own fruit. For of thorns men do not gather figs, nor of a bramble bush gather they grapes.”
Either how canst thou say to thy brother, Brother, let me pull out the mote that is in thine eye, when thou thyself beholdest not the beam that is in thine own eye? Thou hypocrite, cast out first the beam out of thine own eye, and then shalt thou see clearly to pull out the mote that is in thy brother’s eye.
For a good tree bringeth not forth corrupt fruit; neither doth a corrupt tree bring forth good fruit.
For every tree is known by his own fruit. For of thorns men do not gather figs, nor of a bramble bush gather they grapes.
A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.
And why call ye me, Lord, Lord, and do not the things which I say?
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind: and God saw that it was good.”
“Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.”
“Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.”
“Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,”
“These are spots in your feasts of charity, when they feast with you, feeding themselves without fear: clouds they are without water, carried about of winds; trees whose fruit withereth, without fruit, twice dead, plucked up by the roots;”