2 Thessalonians 2:11

And for this cause God sendeth them a working of error, that they should believe a lie:

Romans 1:28

And even as they refused to have God in their knowledge, God gave them up unto a reprobate mind, to do those things which are not fitting;

Ezekiel 14:9

And if the prophet be deceived and speak a word, I, Jehovah, have deceived that prophet, and I will stretch out my hand upon him, and will destroy him from the midst of my people Israel.

1 Kings 22:18-22

And the king of Israel said to Jehoshaphat, Did I not tell thee that he would not prophesy good concerning me, but evil?

2 Chronicles 18:18-22

And Micaiah'said, Therefore hear ye the word of Jehovah: I saw Jehovah sitting upon his throne, and all the host of heaven standing on his right hand and on his left.

Psalm 81:11-12

But my people hearkened not to my voice; And Israel would none of me.

Psalm 109:17

Yea, he loved cursing, and it came unto him; And he delighted not in blessing, and it was far from him.

Isaiah 6:9-10

And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not.

Isaiah 29:9-14

Tarry ye and wonder; take your pleasure and be blind: they are drunken, but not with wine; they stagger, but not with strong drink.

Isaiah 44:20

He feedeth on ashes; a deceived heart hath turned him aside; and he cannot deliver his soul, nor say, Is there not a lie in my right hand?

Isaiah 66:4

I also will choose their delusions, and will bring their fears upon them; because when I called, none did answer; when I spake, they did not hear: but they did that which was evil in mine eyes, and chose that wherein I delighted not.

Jeremiah 27:10

for they prophesy a lie unto you, to remove you far from your land, and that I should drive you out, and ye should perish.

Ezekiel 21:29

while they see for thee false visions, while they divine lies unto thee, to lay thee upon the necks of the wicked that are deadly wounded, whose day is come in the time of the iniquity of the end.

Matthew 24:5

For many shall come in my name, saying, I am the Christ; and shall lead many astray.

Matthew 24:11

And many false prophets shall arise, and shall lead many astray.

John 12:39-43

For this cause they could not believe, for that Isaiah said again,

Romans 1:21-25

because that, knowing God, they glorified him not as God, neither gave thanks; but became vain in their reasonings, and their senseless heart was darkened.

1 Thessalonians 2:3

For our exhortation is not of error, nor of uncleanness, nor in guile:

1 Timothy 4:1

But the Spirit saith expressly, that in later times some shall fall away from the faith, giving heed to seducing spirits and doctrines of demons,

Treasury of Scripture Knowledge

Summary

And for this cause God shall send them strong delusion, that they should believe a lie:

Bible References

General references

Exodus 8:7
And the magicians did in like manner with their enchantments, and brought up frogs upon the land of Egypt.
Exodus 10:20
But Jehovah hardened Pharaoh's heart, and he did not let the children of Israel go.
Leviticus 13:29
And when a man or woman hath a plague upon the head or upon the beard,
Deuteronomy 13:2
and the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them;
Deuteronomy 28:28
Jehovah will smite thee with madness, and with blindness, and with astonishment of heart;
Deuteronomy 29:4
but Jehovah hath not given you a heart to know, and eyes to see, and ears to hear, unto this day.
Psalm 109:17
Yea, he loved cursing, and it came unto him; And he delighted not in blessing, and it was far from him.
Isaiah 47:12
Stand now with thine enchantments, and with the multitude of thy sorceries, wherein thou hast labored from thy youth; if so be thou shalt be able to profit, if so be thou mayest prevail.

American Standard Version Public Domain