2 Thessalonians 2:11

Because of this God will send upon them a misleading influence, [an activity of error and deception] so they will believe the lie,

Romans 1:28

And since they did not see fit to acknowledge God or consider Him worth knowing [as their Creator], God gave them over to a depraved mind, to do things which are improper and repulsive,

Ezekiel 14:9

“But if the prophet [who speaks without My authority] is enticed to speak a word [of his own], it is I the Lord who have caused that prophet [to speak falsely to please the inquirer, thus allowing himself to be a party to the inquirer’s sin], and I will stretch out My hand against him and destroy him from among My people Israel.

1 Kings 22:18-22

Then the king of Israel said to Jehoshaphat, “Did I not tell you that he would not prophesy good concerning me, but evil?”

2 Chronicles 18:18-22

So Micaiah said, “Therefore, hear the word of the Lord: I saw the Lord sitting on His throne, and all the host (army) of heaven standing on His right and on His left.

Psalm 81:11-12


“But My people would not listen to My voice,
And Israel did not [consent to] obey Me.

Psalm 109:17


He also loved cursing, and it came [back] to him;
He did not delight in blessing, so it was far from him.

Isaiah 6:9-10

And He said, “Go, and tell this people:

‘Keep on listening, but do not understand;
Keep on looking, but do not comprehend.’

Isaiah 29:9-14


Stop and take some time and wonder [at this prophecy],
Blind yourselves and be blinded [at its fulfillment by your spiritual incompetence].
They are drunk, but not from wine;
They stagger, but not from strong drink.

Isaiah 44:20

That kind of man (the idolater) feeds on ashes [and is satisfied with ashes]! A deceived mind has led him astray, so that he cannot save himself, or ask, “Is this thing [that I am holding] in my right hand not a lie?”

Isaiah 66:4


So I will choose their punishments,
And will bring the things they dread upon them
Because I called, but no one answered;
I spoke, but they did not listen or obey.
But they did evil in My sight
And chose that in which I did not delight.”

Jeremiah 27:10

For they prophesy a lie to you which will cause you to be removed far from your land; and I will drive you out and you will perish.

Ezekiel 21:29

while they (Ammonite prophets) see false visions [of peace] for you, while they divine lies [of escape] for you—to place you [of Ammon] on the headless bodies of the wicked who are slain, whose day has come, whose time of the final punishment is here.

Matthew 24:5

For many will come in My name [misusing it, and appropriating the strength of the name which belongs to Me], saying, ‘I am the Christ (the Messiah, the Anointed),’ and they will mislead many.

Matthew 24:11

Many false prophets will appear and mislead many.

John 12:39-43

Therefore they could not believe, for Isaiah said again,

Romans 1:21-25

For even though they knew God [as the Creator], they did not honor Him as God or give thanks [for His wondrous creation]. On the contrary, they became worthless in their thinking [godless, with pointless reasonings, and silly speculations], and their foolish heart was darkened.

1 Thessalonians 2:3

For our appeal does not come from delusion or impure motives, nor [is it motivated] by deceit [our message is complete, accurate, and based on the truth—it does not change].

1 Timothy 4:1

But the [Holy] Spirit explicitly and unmistakably declares that in later times some will turn away from the faith, paying attention instead to deceitful and seductive 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
But the magicians (soothsayer-priests) did the same thing with their secret arts and enchantments, and brought up [more] frogs on the land of Egypt.
Exodus 10:20
But the Lord hardened Pharaoh’s heart [so that it was even more resolved and obstinate], and he did not let the Israelites go.
Leviticus 13:29
“When a man or woman has a disease on the head or in the beard (face),
Deuteronomy 13:2
and the sign or the wonder which he spoke (foretold) to you comes to pass, and if he says, ‘Let us follow after other gods (whom you have not known) and let us serve and worship them,’
Deuteronomy 28:28
The Lord will strike you with madness and with blindness and with bewilderment of heart and mind;
Deuteronomy 29:4
Yet to this day the Lord has not given you a heart and mind to understand, nor eyes to see, nor ears to hear.
Psalm 109:17

He also loved cursing, and it came [back] to him;
He did not delight in blessing, so it was far from him.
Isaiah 47:12

“Persist, then, [Babylon] in your enchantments
And your many sorceries
With which you have labored from your youth;
Perhaps you will be able to profit [from them],
Perhaps you may prevail and cause trembling.