Romans 1:28 states God gave them over to a depraved mind—a parallel to the 'strong delusion' sent by God in 2 Thessalonians 2:11.

Romans 1:21-25 describes God 'giving over' people to impurity because they exchanged truth for a lie—same judicial abandonment as the 'strong delusion' in 2 Thessalonians 2:11.

John 12:39-43 explains that the people could not believe because God hardened their hearts—echoing the judicial delusion in 2 Thessalonians 2:11.

1 Kings 22:18-22 recounts God sending a lying spirit to deceive Ahab—a direct OT precedent for the 'strong delusion' in 2 Thessalonians 2:11.

2 Chronicles 18:18-22 parallels 1 Kings 22:18-22, describing the lying spirit sent to deceive Ahab—the same OT pattern for the delusion in 2 Thessalonians 2:11.

Psalm 81:12 states God gave them over to their stubborn hearts—a direct parallel to God sending a strong delusion upon those who refuse truth.

Isaiah 6:10 directly states God hardening hearts and closing eyes—identical to the judicial blinding in 2 Thessalonians 2:11.

Isaiah 29:9-14 describes God pouring out a spirit of deep sleep and blinding the wise—a direct parallel to the 'strong delusion' in 2 Thessalonians 2:11.

Ezekiel 14:9 declares that God Himself deceives a prophet as judgment—a direct OT precedent for the 'strong delusion' in 2 Thessalonians 2:11.

Judges 9:23 records God sending an evil spirit to cause strife — parallels God sending delusion as judgment.

Matthew 13:15 describes hearts dulled and eyes closed so they cannot turn — this judicial blindness is the same as the strong delusion sent by God.

In Ezekiel 20:39, God tells Israel to go serve their idols — a divine giving-over that parallels the strong delusion sent on those who reject truth.

Ezekiel 12:2 describes rebellious people with eyes but unable to see — this judicial blindness parallels the strong delusion God sends on those who reject truth.

Isaiah 63:17 asks why God makes them stray and hardens hearts — parallels divine causation of spiritual blindness.

Isaiah 19:14 says God mingled a spirit of confusion — directly parallels sending strong delusion.

2 Chronicles 18:19 depicts God sending a lying spirit to deceive Ahab — strong parallel to sending delusion.

2 Samuel 24:1 states God incited David to sin — parallel divine causation of wrongdoing as judgment.

1 Samuel 18:10 has God sending a harmful spirit on Saul — directly parallel to sending delusion to believe a lie.

Exodus 10:20 records God hardening Pharaoh's heart — a direct parallel to God sending a strong delusion as judgment.

Isaiah 66:4 shows God bringing fears on those who refused to listen — similar judicial hardening as the delusion sent here.

In Micah 2:11, the people want a preacher of lies — this desire for falsehood parallels God sending a strong delusion to those who reject truth.

1 Timothy 4:1 predicts departure from faith due to deceitful spirits — similar to the delusion sent to make people believe falsehood.