People Change
Immutability and the God Who Cannot

By Aaron Forman · June 9, 2026

The Obituary of Every Love

Two words close more stories than death does. A marriage cools across a decade, a friendship thins to a yearly text, the mentor stops calling, the church that felt like family feels like a lobby — and when someone finally asks what happened, the answer arrives in the same two words every time, and no one ever asks a follow-up question. People change. The sentence is the whole autopsy. We accept it instantly, because we have watched it from both sides: we have been left by people who changed, and we have been the people who changed. It is the one explanation that explains everything and accuses no one.

Faith inherits the dread. Beneath the believer's doctrine, often unconfessed, lives the question: will He still mean it tomorrow? The warmth you knew last year — what if it was a season? You have never known a love that could not, in principle, be filed under those two words. So the heart braces for the day the sentence comes for this love too — and quietly decides not to lean with full weight on anything, including God.

The Sentence With One Exception

Now read the verse the whole doctrine hangs on, and read all of it, because most readers stop halfway. "I the LORD do not change. So you, the descendants of Jacob, are not destroyed" (Malachi 3:6).

The first half is the metaphysics, and if Scripture said only that, immutability would be what most Christians assume it is: a fact about God, filed with omniscience under "attributes, impressive." But the verse does not stop. It turns on a conjunction — so — and lands somewhere that should take your breath: your survival. God's unchangeableness is not offered as information. It is offered as the reason Jacob's descendants still exist. Read the verse backward and feel the weight: why are the people of God not destroyed? Not because they improved — the next verses are a catalogue of their thieving and drift. Because He does not change. That little so is the entire doctrine of the perseverance of the saints compressed into two letters — the bridge from what God is to the fact that you are still here.

Scripture will not let the point soften. "God is not human, that he should lie, not a human being, that he should change his mind" (Numbers 23:19). And the verses where God "relented"? They are the unchanging God responding in time, changelessly, along lines His own decree had always held — we walk through every one of them elsewhere. The psalmist looks at the most permanent things in the created order — the foundations of the earth, the heavens themselves — and says they "will all wear out like a garment. Like clothing you will change them... But you remain the same, and your years will never end" (Psalm 102:26-27). The universe is His wardrobe, not His skin. Stephen Charnock, whose discourse on this attribute remains the deepest in the language, gave the logic in one stroke: "God is a necessary Being; he is necessarily what he is, and, therefore, is unchangeably what he is" — you can read the whole discourse in The Existence and Attributes of God. Change requires a direction: better, or worse. A perfect Being has no better to rise to and, being what He is rather than merely having it, no worse to slide toward. "People change" is a true sentence about every person you have ever met. It has exactly one exception in all of reality, and the exception is the One holding you.

Father of Lights, Fixer of Stars

James gives the doctrine its most beautiful sentence — and then, in the very next verse, welds it to your salvation. "Every good and perfect gift is from above, coming down from the Father of the heavenly lights, who does not change like shifting shadows" (James 1:17).

The NIV's "shifting shadows" is smooth English over startling Greek: parallagē ē tropēs aposkiasma — "variation, or shadow of turning." Parallagē is cousin to the word astronomers still use, parallax, the apparent shift of a star as the watcher moves. James's vocabulary leans toward the sky he has just pointed at: the heavenly lights were the ancient world's gold standard of constancy — the lights by which sailors steered and farmers planted. And even they shift. The sun swings its shadows through every afternoon; the constellations slide with the seasons; the fixed stars are not fixed. James points at the steadiest things in human experience and says: their Father out-fixes them. No variation. Not even the shadow of a turn.

Then the weld. The very next sentence names the first exhibit of this unchanging Father's giving: "He chose to give us birth through the word of truth" (James 1:18). The Greek opens with boulētheis — "having willed it," a deliberate act of sovereign purpose. James is not talking about your first birth; he is talking about the new one — and he hangs it, grammatically, directly beneath the verse about the Father in whom there is no shadow of turning. Do you see what that placement does? Your new birth did not catch God in a generous mood. It came down — the faith you did not generate, willed, chosen, and given by a Father who does not have moods, from the one place in all reality where there is no weather.

The One Thing You Own Outside of Time

Now go one level beneath the doctrine, to the place where it touches every loss you have ever suffered. Perform the inventory honestly. The friendship that thinned: it thinned across years. The love that cooled: it cooled by degrees, through seasons. The certainty that faded, the warmth you cannot get back, the person who became someone else — every loss in your life shares one medium. It happened in time. Drift, cooling, forgetting, leaving: all of them are time's verbs. Loss needs a before and an after to exist at all. Time is the solvent in which every human promise either holds or dissolves — and so far, given enough of it, the solvent has won every time.

Now hear where Paul locates your election: "he chose us in him before the creation of the world" (Ephesians 1:4). And lest "before" sound like merely an earlier spot on the same line, Paul strips even that away elsewhere: this grace "was given us in Christ Jesus before the beginning of time" (2 Timothy 1:9) — not earlier in the medium; prior to the medium itself. The choice that saves you is not parked anywhere on the timeline where revision is possible, because revision needs a later, and God's decree does not sit in the sequence where laters happen. This is why Jesus tells you to store treasure "in heaven, where moths and vermin do not destroy" (Matthew 6:20) — moths and vermin are slow workers; they are what time's solvency looks like up close. A treasure beyond their reach is a treasure outside their medium. Peter says it of your inheritance: it "can never perish, spoil or fade," being "kept in heaven for you" — and then closes the other end of the vault: "who through faith are shielded by God's power" (1 Peter 1:4-5). The inheritance is kept for you, and you are kept for it. Nothing stored in eternity rots. You have spent your whole life losing things to time. There is exactly one thing you own that was never in it.

And because God knows how hard it is for creatures of time to trust what sits outside it, He did something almost unbearably kind: He swore. "Because God wanted to make the unchanging nature of his purpose very clear to the heirs of what was promised, he confirmed it with an oath. God did this so that, by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope set before us may be greatly encouraged" (Hebrews 6:17-18). An immutable God gains nothing by taking an oath; the promise was already as fixed as His being. The oath is not for His integrity but for your trembling — the Unchangeable stooping to speak the only dialect of certainty we know, the way a father does not become more truthful by saying I promise, but his child can finally sleep.

He Will Still Mean It Tomorrow

So bring the dread out into the light and let the doctrine answer it. Will He still mean it tomorrow? Tomorrow is a place He is not subject to. The God who chose you is not en route through time toward some future self who might see you differently; He has no future self. "He who began a good work in you will carry it on to completion until the day of Christ Jesus" (Philippians 1:6) — not because He keeps renewing His resolve, but because the resolve cannot lapse. Even your faithlessness cannot reach the anchor: "if we are faithless, he remains faithful, for he cannot disown himself" (2 Timothy 2:13). Cannot. One line earlier Paul warns the deserter — "If we disown him, he will also disown us" — and then turns, in the next breath, to the faltering believer and grounds their survival not in their grip but in His self-consistency. Union runs that deep in the Bible's own mouth: when Saul struck the church, the voice from heaven did not ask why he persecuted them — "Saul, Saul, why do you persecute me?" (Acts 9:4). You are in Christ; disowning you is no longer distinguishable from disowning Himself, and Malachi already told you what is impossible for the LORD who does not change.

This is why His compassions can be "new every morning" (Lamentations 3:22-23) without His heart ever once being new — the mercies arrive fresh because they pour from a source that never varies into days that always do. The freshness is in the arrival, not the origin. He does not give up, He does not unseal, He does not lose what He holds — "Jesus Christ is the same yesterday and today and forever" (Hebrews 13:8). Every link in the chain is forged from the same unchangeable will.

"People change." Say it one last time, and hear what it has become: not the obituary waiting for this love too, but the boundary marker showing where this love does not live. Every love that ever ended on those two words ended because its subject was a creature — a being in time, made of parts and seasons, capable of becoming someone else. The Love that has you is not a creature. It is not in time, where loves dissolve — and when it entered time at Bethlehem, it took your flesh without becoming time's subject; it is not made of parts, where loyalties get outvoted; it does not have a tomorrow in which to reconsider you. Everything you have ever lost, you lost in time. You are held by a choice that was never in it — and the One who made it has told you, in the only two clauses your tired heart will finally need: I the LORD do not change. So you are not destroyed.