How God heals the mind of those under a powerful delusion (Isaiah 28:15, Romans 1:28, Isaiah 30:28, 2 Thessalonians 2:11)

I saw a question on Twitter this morning. "Can you be a part-time Christian?" the comments had 100s of "no" and a thoughtful reference to lukewarm-vomit from the mouth of God in Revelation. But a motorcycle evangelist from northern California (Chaplain Ken) had a truly insightful comment, "God doesn't want weekend visits, he wants full-time custody." Intrigued I followed him and saw this picture from previous tweets:

Isaiah 26:3-4) You will keep in perfect peace those whose minds are steadfast because they trust in you. Trust in the Lord forever, for the Lord, the Lord himself is the Rock eternal.

Chaplain Ken also had a promotion to a bad called Sound Doctrine and their song "John 3:16" - that kept repeating only John 3:16. The idea in John 3:16 is to start there and keep reading... John wrote so you would believe in Jesus, Son of God

So rather than grumble in my heart, I started in Isaiah 26 and kept reading...Isaiah talks about the nature of people and the nature of God. How God's sovereign plans and human free will play out together. 

What happens when people reject God is described in Romans 1:28: "Since they thought it foolish to acknowledge God, he abandoned them to their foolish thinking and let them do things that should never be done."

Isaiah 28:15-18: For you said, "We have made a covenant with death; we have fashioned an agreement with Sheol. When the overwhelming scourge passes through it will not touch us, because we have made lies our refuge and falsehood our hiding place."

So this is what the Sovereign Lord says: “See, I lay a stone in Zion, a tested stone, a precious cornerstone for a sure foundation; the one who relies on it will never be stricken with panic. I will make justice the measuring line and righteousness the plumb line; hail will sweep away your refuge, the lie, and water will overflow your hiding place. Your covenant with death will be annulled; your agreement with the realm of the dead will not stand.

Peter uses the language of a building (1 Peter 2:6-8), a nation (1 Peter 2:9-10) pulling from Isaiah 8:14, 28:16, Psalm 118:22, Exodus 19:5-6, Hosea 2:23 (SLU). From Luke 24:44-45, how was Peter able to make these connections?

Isaiah 30:6, 18) This is what the Sovereign Lord, the Holy One of Israel, says: “In repentance and rest is your salvation, in quietness and trust is your strength...the Lord longs to be gracious to you; therefore he will rise up to show you compassion. For the Lord is a God of justice. Blessed are all who wait for him!

Isaiah 30:28: His breath is like a rushing torrent, rising up to the neck. He shakes the nations in the sieve of destruction; he places in the jaws of the peoples a bit that leads them astray. (NIV)

His hot breath pours out like a flood up to the neck of his enemies. He will sift out the proud nations for destruction. He will bridle them and lead them away to ruin. (NLT)

And his breath, as an overflowing stream, shall reach to the midst of the neck, to sift the nations with the sieve of vanity: and there shall be a bridle in the jaws of the people, causing them to err. (KJV)

Connects with 2 Thessalonians 2:11: ...with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them. 11 For this reason God will send them a powerful delusion so that they believe the lie, in order that judgment may come upon all who have disbelieved the truth and delighted in wickedness

Peter's letters explain how faith, grace, and hope work in our lives