Matthew 3:10
the ax is already laid to the root of the trees: every tree then which does not produce good fruit, will be hewn down, and cast into the fire.
Matthew 7:15-20
Beware of false prophets, who to outward appearance are sheep, but inwardly they are ravenous wolves.
Matthew 21:19
when seeing a fig-tree by the way, he came to it, and finding nothing thereon, but bare leaves, said to it, may you never more bear fruit. and presently the fig-tree withered away.
Luke 13:7-9
then he said to the vine-dresser, you see, I have been looking these three years for fruit from this fig-tree, but find none: hew it down, why should it cumber my ground?
John 15:2-8
every branch in me that beareth not fruit, he takes away: as for the branch that bears fruit, he prunes it clean, to make it more fruitful.