Verses with the word folly in the Old Testament (35 verses):

Genesis 34:7
And the sons of Jacob came out of 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.

Deuteronomy 22:21
Then they shall bring out the damsel to the door of her father's house, and the men of her city shall stone her with stones that she die: because she hath wrought folly in Israel, to play the whore in her father's house: so shalt thou put evil away from among you.

Joshua 7:15
And it shall be, that he that is taken with the accursed thing shall be burnt with fire, he and all that he hath: because he hath transgressed the covenant of the LORD, and because he hath wrought folly in Israel.

Judges 19:23
And the man, the master of the house, went out unto them, and said unto them, Nay, my brethren, nay, I pray you, do not so wickedly; seeing that this man is come into mine house, do not this folly.

Judges 20:6
And I took my concubine, and cut her in pieces, and sent her throughout all the country of the inheritance of Israel: for they have committed lewdness and folly in Israel.

Judges 20:10
And we will take ten men of an hundred throughout all the tribes of Israel, and an hundred of a thousand, and a thousand out of ten thousand, to fetch victual for the people, that they may do, when they come to Gibeah of Benjamin, according to all the folly that they have wrought in Israel.

1 Samuel 25:25
Let not my lord, I pray thee, regard this man of Belial, even Nabal: for as his name is, so is he; Nabal is his name, and folly is with him: but I thine handmaid saw not the young men of my lord, whom thou didst send.

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.

Job 4:18
Behold, he put no trust in his servants; and his angels he charged with folly:

Job 24:12
Men groan from out of the city, and the soul of the wounded crieth out: yet God layeth not folly to them.

Job 42:8
Therefore take unto you now seven bullocks and seven rams, and go to my servant Job, and offer up for yourselves a burnt offering; and my servant Job shall pray for you: for him will I accept: lest I deal with you after your folly, in that ye have not spoken of me the thing which is right, like my servant Job.

Psalms 49:13
This their way is their folly: yet their posterity approve their sayings. Selah.

Psalms 85:8
I will hear what God the LORD will speak: for he will speak peace unto his people, and to his saints: but let them not turn again to folly.

Proverbs 5:23
He shall die without instruction; and in the greatness of his folly he shall go astray.

Proverbs 13:16
Every prudent man dealeth with knowledge: but a fool layeth open his folly.

Proverbs 14:8
The wisdom of the prudent is to understand his way: but the folly of fools is deceit.

Proverbs 14:18
The simple inherit folly: but the prudent are crowned with knowledge.

Proverbs 14:24
The crown of the wise is their riches: but the foolishness of fools is folly.

Proverbs 14:29
He that is slow to wrath is of great understanding: but he that is hasty of spirit exalteth folly.

Proverbs 15:21
Folly is joy to him that is destitute of wisdom: but a man of understanding walketh uprightly.

Proverbs 16:22
Understanding is a wellspring of life unto him that hath it: but the instruction of fools is folly.

Proverbs 17:12
Let a bear robbed of her whelps meet a man, rather than a fool in his folly.

Proverbs 18:13
He that answereth a matter before he heareth it, it is folly and shame unto him.

Proverbs 26:4
Answer not a fool according to his folly, lest thou also be like unto him.

Proverbs 26:5
Answer a fool according to his folly, lest he be wise in his own conceit.

Proverbs 26:11
As a dog returneth to his vomit, so a fool returneth to his folly.

Ecclesiastes 1:17
And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.

Ecclesiastes 2:3
I sought in mine heart to give myself unto wine, yet acquainting mine heart with wisdom; and to lay hold on folly, till I might see what was that good for the sons of men, which they should do under the heaven all the days of their life.

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 2:13
Then I saw that wisdom excelleth folly, as far as light excelleth darkness.

Ecclesiastes 7:25
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:

Ecclesiastes 10:1
Dead flies cause the ointment of the apothecary to send forth a stinking savour: so doth a little folly him that is in reputation for wisdom and honour.

Ecclesiastes 10:6
Folly is set in great dignity, and the rich sit in low place.

Isaiah 9:17
Therefore the LORD shall have no joy in their young men, neither shall have mercy on their fatherless and widows: for every one is an hypocrite and an evildoer, and every mouth speaketh folly. For all this his anger is not turned away, but his hand is stretched out still.

Jeremiah 23:13
And I have seen folly in the prophets of Samaria; they prophesied in Baal, and caused my people Israel to err.