Ecclesiastes 7:25

I applied my heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:

Ecclesiastes 10:13

The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.

Genesis 34:7

And the sons of Jacob came from the field when they heard it: and the men were grieved, and they were very wroth, because he had wrought folly in Israel, in lying with Jacob's daughter; which thing ought not to be done.

Joshua 7:13

Rise, sanctify the people, and say, Sanctify yourselves against to-morrow: for thus saith the LORD God of Israel, There is an accursed thing in the midst of thee, O Israel: thou canst not stand before thy enemies, until ye take away the accursed thing from among you.

2 Samuel 13:12

And she answered him, Nay, my brother, do not force me; for no such thing ought to be done in Israel: do not thou this folly.

Proverbs 17:12

Let a bear robbed of her whelps meet a man, rather than a fool in his folly.

Proverbs 26:11

As a dog returneth to his vomit, so a fool returneth to his folly.

Ecclesiastes 1:13-17

And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this grievous labor hath God given to the sons of man to be exercised with it.

Ecclesiastes 2:1-3

I said in my heart, Come now, I will prove thee with mirth, therefore enjoy pleasure: and behold, this also is vanity.

Ecclesiastes 2:12

And I turned myself to behold wisdom, and madness, and folly: for what can the man do that cometh after the king? even that which hath been already done.

Ecclesiastes 2:15

Then said I in my heart, As it happeneth to the fool, so it happeneth even to me; and why was I then more wise? Then I said in my heart, that this also is vanity.

Ecclesiastes 2:20

Therefore I went about to cause my heart to despair of all the labor which I took under the sun.

Ecclesiastes 3:16-17

And moreover I saw under the sun the place of judgment, that wickedness was there; and the place of righteousness, that iniquity was there.

Ecclesiastes 7:27

Behold, this have I found, saith the preacher, counting one by one, to find out the account:

Ecclesiastes 9:1-3

For all this I considered in my heart even to declare all this, that the righteous, and the wise, and their works, are in the hand of God: no man knoweth either love or hatred by all that is before them.

Jeremiah 12:1-2

Righteous art thou, O LORD, when I plead with thee: yet let me speak with thee of thy judgments: Why doth the way of the wicked prosper? why are they all happy that deal very treacherously?

2 Peter 2:3-9

And through covetousness they will with feigned words make merchandise of you: whose judgment now of a long time lingereth not, and their damnation slumbereth not.

2 Peter 3:3-9

Knowing this first, that there will come in the last days scoffers, walking after their own lusts,

Treasury of Scripture Knowledge

Summary

I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:

I applied mine heart

General references

Bible References

I applied mine heart

Ecclesiastes 1:13
And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this grievous labor hath God given to the sons of man to be exercised with it.
Ecclesiastes 2:1
I said in my heart, Come now, I will prove thee with mirth, therefore enjoy pleasure: and behold, this also is vanity.

The reason

Ecclesiastes 7:27
Behold, this have I found, saith the preacher, counting one by one, to find out the account:
Ecclesiastes 3:16
And moreover I saw under the sun the place of judgment, that wickedness was there; and the place of righteousness, that iniquity was there.
Ecclesiastes 9:1
For all this I considered in my heart even to declare all this, that the righteous, and the wise, and their works, are in the hand of God: no man knoweth either love or hatred by all that is before them.
Jeremiah 12:1
Righteous art thou, O LORD, when I plead with thee: yet let me speak with thee of thy judgments: Why doth the way of the wicked prosper? why are they all happy that deal very treacherously?
2 Peter 2:3
And through covetousness they will with feigned words make merchandise of you: whose judgment now of a long time lingereth not, and their damnation slumbereth not.
2 Peter 3:3
Knowing this first, that there will come in the last days scoffers, walking after their own lusts,

Know

Ecclesiastes 9:3
This is an evil among all things that are done under the sun, that there is one event to all: yes, also the heart of the sons of men is full of evil, and madness is in their heart while they live, and after that they go to the dead.
Ecclesiastes 10:13
The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.
Genesis 34:7
And the sons of Jacob came from the field when they heard it: and the men were grieved, and they were very wroth, because he had wrought folly in Israel, in lying with Jacob's daughter; which thing ought not to be done.
Joshua 7:13
Rise, sanctify the people, and say, Sanctify yourselves against to-morrow: for thus saith the LORD God of Israel, There is an accursed thing in the midst of thee, O Israel: thou canst not stand before thy enemies, until ye take away the accursed thing from among you.
2 Samuel 13:12
And she answered him, Nay, my brother, do not force me; for no such thing ought to be done in Israel: do not thou this folly.
Proverbs 17:12
Let a bear robbed of her whelps meet a man, rather than a fool in his folly.
Proverbs 26:11
As a dog returneth to his vomit, so a fool returneth to his folly.

General references

Job 28:12
But where shall wisdom be found? and where is the place of understanding?