Matthew 7:16

By their fruits ye shall know them. Do men gather a bunch of grapes from thorns, or from thistles figs?

Matthew 12:33

Either make the tree good, and its fruit good; or make the tree corrupt, and its fruit corrupt. For from the fruit the tree is known.

James 3:12

Can, my brethren, a fig produce olives, or a vine figs? Neither can salt water make sweet water.

Matthew 7:20

By their fruits then surely ye shall know them.

Luke 6:43-45

For there is no good tree which produces corrupt fruit, nor a corrupt tree which produces good fruit;

2 Peter 2:10-18

and specially those who walk after the flesh in the lust of uncleanness, and despise lordship. Bold are they, self-willed; they do not fear speaking injuriously of dignities:

Jude 1:10-19

But these, whatever things they know not, they speak railingly against; but what even, as the irrational animals, they understand by mere nature, in these things they corrupt themselves.

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
By their fruits then surely ye shall know them.
Matthew 12:33
Either make the tree good, and its fruit good; or make the tree corrupt, and its fruit corrupt. For from the fruit the tree is known.
2 Peter 2:10
and specially those who walk after the flesh in the lust of uncleanness, and despise lordship. Bold are they, self-willed; they do not fear speaking injuriously of dignities:
Jude 1:10
But these, whatever things they know not, they speak railingly against; but what even, as the irrational animals, they understand by mere nature, in these things they corrupt themselves.

Do

Luke 6:43
For there is no good tree which produces corrupt fruit, nor a corrupt tree which produces good fruit;
James 3:12
Can, my brethren, a fig produce olives, or a vine figs? Neither can salt water make sweet water.

General references

Proverbs 20:11
Even a child is known by his doings, whether his work be pure, and whether it be right.
Matthew 7:20
By their fruits then surely ye shall know them.
Luke 6:43
For there is no good tree which produces corrupt fruit, nor a corrupt tree which produces good fruit;