Matthew 7:16
You will know them by their fruit. Grapes aren't gathered from thorns, or figs from thistles, are they?
Matthew 12:33
"Either make the tree good and its fruit good, or make the tree rotten and its fruit rotten, because a tree is known by its fruit.
James 3:12
My brothers, a fig tree cannot produce olives, nor a grapevine figs, can it? Neither can a salt spring produce fresh water.
Matthew 7:20
So by their fruit you will know them."
Luke 6:43-45
"A good tree doesn't produce rotten fruit, and a rotten tree doesn't produce good fruit,
2 Peter 2:10-18
especially those who satisfy their flesh by indulging in its passions and who despise authority.
Jude 1:10-19
Whatever these people do not understand, they slander. Like irrational animals, they are destroyed by the very things they know by instinct.