2 Thessalonians 2:11

Because of this, God sends them a working of error, that they should believe a lie;

Romans 1:28

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

Ezekiel 14:9

If the prophet is deceived and speak a word, I, Yahweh, have deceived that prophet, and I will stretch out my hand on him, and will destroy him from the midst of my people Israel.

1 Kings 22:18-22

The king of Israel said to Jehoshaphat, "Didn't I tell you that he would not prophesy good concerning me, but evil?"

2 Chronicles 18:18-22

[Micaiah] said, "Therefore hear the word of Yahweh: I saw Yahweh sitting on his throne, and all the army of heaven standing on his right hand and on his left.

Psalm 81:11-12

But my people didn't listen to my voice. Israel desired none of me.

Psalm 109:17

Yes, he loved cursing, and it came to him. He didn't delight in blessing, and it was far from him.

Isaiah 6:9-10

He said, "Go, and tell this people, 'You hear indeed, but don't understand; and you see indeed, but don't perceive.'

Isaiah 29:9-14

Pause and wonder! Blind yourselves and be blind! They are drunken, but not with wine; they stagger, but not with strong drink.

Isaiah 44:20

He feeds on ashes. A deceived heart has turned him aside; and he can't deliver his soul, nor say, "Isn't there a lie in my right hand?"

Isaiah 66:4

I also will choose their delusions, and will bring their fears on them; because when I called, none did answer; when I spoke, they did not hear: but they did that which was evil in my eyes, and chose that in which I didn't delight."

Jeremiah 27:10

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

Ezekiel 21:29

while they see for you false visions, while they divine lies to you, to lay you on the necks of the wicked who are deadly wounded, whose day is come in the time of the iniquity of the end.

Matthew 24:5

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

Matthew 24:11

Many false prophets will arise, and will lead many astray.

John 12:39-43

For this cause they couldn't believe, for Isaiah said again,

Romans 1:21-25

Because, knowing God, they didn't glorify him as God, neither gave thanks, but became vain in their reasoning, and their senseless heart was darkened.

1 Thessalonians 2:3

For our exhortation is not of error, nor of uncleanness, nor in deception.

1 Timothy 4:1

But the Spirit says expressly that in later times some will fall away from the faith, paying attention 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
The magicians did the same thing with their enchantments, and brought up frogs on the land of Egypt.
Exodus 10:20
But Yahweh hardened Pharaoh's heart, and he didn't let the children of Israel go.
Leviticus 13:29
"When a man or woman has a plague on the head or on the beard,
Deuteronomy 13:2
and the sign or the wonder come to pass, of which he spoke to you, saying, "Let us go after other gods" (which you have not known) "and let us serve them;"
Deuteronomy 28:28
Yahweh will strike you with madness, and with blindness, and with astonishment of heart;
Deuteronomy 29:4
but Yahweh has not given you a heart to know, and eyes to see, and ears to hear, to this day.
Psalm 109:17
Yes, he loved cursing, and it came to him. He didn't delight in blessing, and it was far from him.
Isaiah 47:12
"Stand now with your enchantments, and with the multitude of your sorceries, in which you have labored from your youth; if so be you shall be able to profit, if so be you may prevail.