Matthew 7:16

By their fruit you will recognize them [that is, by their contrived doctrine and self-focus]. Do people pick grapes from thorn bushes or figs from thistles?

Matthew 12:33

“Either make the tree good and its fruit good, or make the tree bad and its fruit bad; for the tree is recognized and judged by its fruit.

James 3:12

Can a fig tree, my brothers, produce olives, or a grapevine produce figs? Nor can salt water produce fresh.

Matthew 7:20

Therefore, by their fruit you will recognize them [as false prophets].

Luke 6:43-45

For there is no good tree which produces bad fruit, nor, on the other hand, a bad tree which produces good fruit.

2 Peter 2:10-18

and especially those who indulge in the corrupt passions of the sin nature, and despise authority.Presumptuous and reckless, self-willed and arrogant [creatures, despising the majesty of the Lord], they do not tremble when they revile angelic majesties,

Jude 1:10-19

But these men sneer at anything which they do not understand; and whatever they do know by [mere] instinct, like unreasoning and irrational beasts—by these things they are destroyed.

Treasury of Scripture Knowledge

Summary

Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?

Bible References

Shall

Matthew 7:20
Therefore, by their fruit you will recognize them [as false prophets].
Matthew 12:33
“Either make the tree good and its fruit good, or make the tree bad and its fruit bad; for the tree is recognized and judged by its fruit.
2 Peter 2:10
and especially those who indulge in the corrupt passions of the sin nature, and despise authority.Presumptuous and reckless, self-willed and arrogant [creatures, despising the majesty of the Lord], they do not tremble when they revile angelic majesties,
Jude 1:10
But these men sneer at anything which they do not understand; and whatever they do know by [mere] instinct, like unreasoning and irrational beasts—by these things they are destroyed.

Do

Luke 6:43
For there is no good tree which produces bad fruit, nor, on the other hand, a bad tree which produces good fruit.
James 3:12
Can a fig tree, my brothers, produce olives, or a grapevine produce figs? Nor can salt water produce fresh.

General references

Proverbs 20:11

Even a boy is known and distinguished by his acts,
Whether his conduct is pure and right.
Matthew 7:20
Therefore, by their fruit you will recognize them [as false prophets].
Luke 6:43
For there is no good tree which produces bad fruit, nor, on the other hand, a bad tree which produces good fruit.