2 Thessalonians 2:11

So God dispatches the power of deceit (error) to work in them so that they are allowed to believe what is false.

Romans 1:28

They did not like to retain God in their knowledge, so God gave them over to a reprobate (depraved) mind, to do things that are not fitting.

Ezekiel 14:9

If a prophet is tricked into giving a prophecy, it is I, Jehovah, who tricked the prophet. I will use my power against you and destroy you from among my people Israel.

1 Kings 22:18-22

Israel's king said to Jehoshaphat: Did I not say to you, He will prophesy about me? It is always something bad!

2 Chronicles 18:18-22

Micaiah continued: Now listen to what Jehovah says! I saw Jehovah sitting on his throne in heaven. All his angels were standing beside him.

Psalm 81:11-12

My people did not listen to my voice. Israel did not obey me.

Psalm 109:17

He loved to put curses on others, so he, too, was cursed. He did not like to bless others, so he never received a blessing.

Isaiah 6:9-10

He said: Go and tell this people: 'Hear constantly but do not understand. See constantly but do not perceive.'

Isaiah 29:9-14

Stand still and wonder. Refuse to see and be blind. Get drunk and stagger, but not from wine.

Isaiah 44:20

They eat ashes because they are deceived. Their own misguided minds lead them astray. They cannot rescue themselves or ask themselves: Is what I hold in my right hand a false god?

Isaiah 66:4

Therefore I will choose harsh treatment for them and bring on them what they fear. I called, but no one answered. I spoke, but they did not listen. They did what I consider evil. They chose what I do not like.

Jeremiah 27:10

They prophesy lies to you. They will cause you to be taken far from your lands. I will scatter you, and you will die.

Ezekiel 21:29

The visions that you see are false. The predictions you make are lies. You are wicked and evil. Your day is coming, the day of your final punishment. The sword is going to fall on your necks.

Matthew 24:5

Many will come in my name, saying, 'I am the Christ,' and will deceive many.

Matthew 24:11

Many false prophets will arise and lead many astray.

John 12:39-43

Isaiah revealed the reason they could not believe:

Romans 1:21-25

for when they knew God, they did not glorify him as God. They did not thank him and were vain in their reasoning, for their foolish hearts were darkened.

1 Thessalonians 2:3

For our presentation (exhortation) is not based on error, or of uncleanness, or in deceit.

1 Timothy 4:1

The Spirit explicitly says that some will fall away from the faith (truth) in later times. Spirits and doctrines of demons will seduce them,

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 used their secret powers to do the same thing.
Exodus 10:20
But Jehovah made the king stubborn. He did not let the Israelites go.
Leviticus 13:29
When any of you, male or female, have a sore on your head or chin,
Deuteronomy 13:2
in order to lead you to worship and serve gods that you have not worshiped before, and even if what they promise comes true,
Deuteronomy 28:28
You will become insane and go blind. Jehovah will make you so confused,
Deuteronomy 29:4
To this very day Jehovah has not given you a heart to know, eyes to see, or ears to hear.
Psalm 109:17
He loved to put curses on others, so he, too, was cursed. He did not like to bless others, so he never received a blessing.
Isaiah 47:12
Keep all your magic spells and charms. You have used them since you were young. Perhaps they will be of some help to you. Perhaps you can frighten your enemies.