Matthew 3:10
And now also the ax is laid to the root of the trees: every tree therefore which produceth not good fruit, is hewing down, and casting into the fire.
Matthew 7:15-20
Take heed then of false prophets, who come to you in the garb of sheep, but inwardly they are ravening wolves.
Matthew 21:19
and seeing a fig-tree at the road side, he went up to it, and found nothing on it but leaves only: and saith unto it, Let no fruit spring from thee henceforth for ever: and immediately the fig-tree withered entirely away.
Luke 13:7-9
Then said he to the vine-dresser, Lo! for three years have I come, expecting fruit on this fig-tree, and find none: cut it down; why doth it render the ground thus useless?
John 15:2-8
Every branch in me that beareth no fruit, he taketh it away: and every branch that beareth fruit, he pruneth it clean, that it may bring forth more fruit.