Ecclesiastes 7:25

I turned about, and my heart was set to know and to search out, and to seek wisdom and the reason of things , and to know that wickedness is folly, and that foolishness is 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 in 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

Up, sanctify the people, and say, Sanctify yourselves against tomorrow: for thus saith Jehovah, the God of Israel, There is a devoted thing in the midst of thee, O Israel; thou canst not stand before thine enemies, until ye take away the devoted 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 that returneth to his vomit,'so is a fool that repeateth his folly.

Ecclesiastes 1:13-17

And I applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.

Ecclesiastes 2:1-3

I said in my heart, Come now, I will prove thee with mirth; therefore enjoy pleasure: and, behold, this also was 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 done long ago.

Ecclesiastes 2:15

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

Ecclesiastes 2:20

Therefore I turned about to cause my heart to despair concerning all the labor wherein I had labored under the sun.

Ecclesiastes 3:16-17

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

Ecclesiastes 7:27

Behold, this have I found, saith the Preacher, laying one thing to another, to find out the account;

Ecclesiastes 9:1-3

For all this I laid to my heart, even to explore all this: that the righteous, and the wise, and their works, are in the hand of God; whether it be love or hatred, man knoweth it not; all is before them.

Jeremiah 12:1-2

Righteous art thou, O Jehovah, when I contend with thee; yet would I reason the cause with thee: wherefore doth the way of the wicked prosper? wherefore are all they at ease that deal very treacherously?

2 Peter 2:3-9

And in covetousness shall they with feigned words make merchandise of you: whose sentence now from of old lingereth not, and their destruction slumbereth not.

2 Peter 3:3-9

knowing this first, that in the last days mockers shall come with mockery, 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 applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.
Ecclesiastes 2:1
I said in my heart, Come now, I will prove thee with mirth; therefore enjoy pleasure: and, behold, this also was vanity.

The reason

Ecclesiastes 7:27
Behold, this have I found, saith the Preacher, laying one thing to another, to find out the account;
Ecclesiastes 3:16
And moreover I saw under the sun, in the place of justice, that wickedness was there; and in the place of righteousness, that wickedness was there.
Ecclesiastes 9:1
For all this I laid to my heart, even to explore all this: that the righteous, and the wise, and their works, are in the hand of God; whether it be love or hatred, man knoweth it not; all is before them.
Jeremiah 12:1
Righteous art thou, O Jehovah, when I contend with thee; yet would I reason the cause with thee: wherefore doth the way of the wicked prosper? wherefore are all they at ease that deal very treacherously?
2 Peter 2:3
And in covetousness shall they with feigned words make merchandise of you: whose sentence now from of old lingereth not, and their destruction slumbereth not.
2 Peter 3:3
knowing this first, that in the last days mockers shall come with mockery, walking after their own lusts,

Know

Ecclesiastes 9:3
This is an evil in all that is done under the sun, that there is one event unto all: yea 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 in 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
Up, sanctify the people, and say, Sanctify yourselves against tomorrow: for thus saith Jehovah, the God of Israel, There is a devoted thing in the midst of thee, O Israel; thou canst not stand before thine enemies, until ye take away the devoted 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 that returneth to his vomit,'so is a fool that repeateth his folly.

General references

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

American Standard Version Public Domain