Matthew 3:10

And already is the axe lying at the root of the trees; every tree therefore that beareth not good fruit is to be cut down, and cast into the fire.

Matthew 7:15-20

Beware of the false prophets, who come to you in sheeps clothing, but inwardly are ravening wolves.

Matthew 21:19

And seeing one figtree by the roadside, he went up to it, and found nothing on it, but leaves only; and he saith to it, Let there be no fruit from thee hencefoward for ever. And immediately the figtree withered.

Luke 13:7-9

Then said he to the vinedresser, Lo! three years I have come seeking fruit on this figtree, and have found none; cut it down; why cumbereth it the ground?

John 15:2-8

Every branch in me that beareth not fruit he taketh away; and every branch that beareth fruit he cleanseth, that it may bear more fruit.

Treasury of Scripture Knowledge

Summary

When thou shalt besiege a city a long time, in making war against it to take it, thou shalt not destroy the trees thereof by forcing an axe against them: for thou mayest eat of them, and thou shalt not cut them down (for the tree of the field is man's life) to employ them in the siege:

Bible References

Thou shalt not

Matthew 3:10
And already is the axe lying at the root of the trees; every tree therefore that beareth not good fruit is to be cut down, and cast into the fire.
Matthew 7:15
Beware of the false prophets, who come to you in sheeps clothing, but inwardly are ravening wolves.
Matthew 21:19
And seeing one figtree by the roadside, he went up to it, and found nothing on it, but leaves only; and he saith to it, Let there be no fruit from thee hencefoward for ever. And immediately the figtree withered.
Luke 13:7
Then said he to the vinedresser, Lo! three years I have come seeking fruit on this figtree, and have found none; cut it down; why cumbereth it the ground?
John 15:2
Every branch in me that beareth not fruit he taketh away; and every branch that beareth fruit he cleanseth, that it may bear more fruit.