God Unchanging

Today's Scripture

Malachi 3:6 — "For I the LORD do not change; therefore you, O children of Jacob, are not consumed."

Psalm 102:25-27 — "Of old you laid the foundation of the earth, and the heavens are the work of your hands. They will perish, but you will remain; they will all wear out like a garment. You will change them like a robe, and they will pass away, but you are the same, and your years have no end."

Hebrews 13:8 — "Jesus Christ is the same yesterday and today and forever."

The Big Idea

Everything you know is in the middle of changing — your body, your friendships, your town, your feelings. God is not. Theologians call this his immutability, which simply means God cannot change and will not change. Today is about why that old word is one of the most comforting facts in the universe.

Reflection

Everything you love is mid-update

Your phone updates itself overnight and looks different in the morning. Friend groups reshuffle over a single summer. Parents age. Churches change pastors. Even you are not stable: you believe boldly on Monday and doubt by Friday. We live our whole lives on moving ground.

Maybe you have gone back to a place you loved as a child — an old school, a grandparent's street — and felt that strange ache. The building is smaller than you remembered, the tree is gone, the people have moved. Nothing stays. The Greeks had a saying that you cannot step into the same river twice. The Bible agrees about the river. It just insists there is a Rock in it.

The psalmist felt it too, and he looked for something fixed. His answer is startling: even the most permanent things in creation are temporary clothing. Psalm 102:25-27 — the heavens "will all wear out like a garment. You will change them like a robe... but you are the same, and your years have no end." Mountains and galaxies are an outfit God will one day swap. He alone remains.

Psalm 90:2 stretches the same thought backward and forward: "from everlasting to everlasting you are God." He has no birthday and no expiration date. Packer presses this until it almost makes you dizzy:

"He does not grow older. His life does not wax or wane. He does not gain new powers nor lose those that he once had. He does not mature or develop. He does not get stronger, or weaker, or wiser, as time goes by." — J.I. Packer, Knowing God

"Wax or wane" is moon language — grow and shrink. Everything created waxes and wanes. God never has. The God you pray to tonight is not a slightly older, slightly different God than Abraham prayed to. He is the same one, at full strength, forever.

A character that cannot be altered

But here is the part that touches daily life. People change in more painful ways than aging. A warm friend turns cold. A trustworthy person starts lying. Someone who loved you stops. Every human relationship carries this fine print: the other person may not stay who they are. Packer names the contrast with one unforgettable line:

"Strain, or shock, or a lobotomy can alter the character of a man, but nothing can alter the character of God." — J.I. Packer, Knowing God

Nothing. No disappointment sours him. No betrayal hardens him. The kindness God shows you today will not erode by next year, because James 1:17 says every good gift comes "from the Father of lights, with whom there is no variation or shadow due to change." Sunlight shifts and casts moving shadows all day long; the Father of lights does not flicker.

His words hold still too. Numbers 23:19 — "God is not man, that he should lie, or a son of man, that he should change his mind. Has he said, and will he not do it?" Human promises wobble because human moods wobble. God's promises sit on top of an unchanging character. Isaiah 40:8 — "The grass withers, the flower fades, but the word of our God will stand forever."

The book of Hebrews says God went even further to convince us. Hebrews 6:17-18 — wanting "to show more convincingly to the heirs of the promise the unchangeable character of his purpose, he guaranteed it with an oath, so that by two unchangeable things, in which it is impossible for God to lie, we... might have strong encouragement." Think about what that means. God's bare word was already unbreakable. But because he knew how shaky our trust is, he added an oath on top — he swore to his own promise, like a friend who says "I promise" and then puts it in writing anyway. Not because he might fail, but so that we might rest.

A century ago, a quiet hymn writer named Thomas Chisholm read these verses and gave the church the words many of us still sing:

"Great is Thy faithfulness, O God my Father; there is no shadow of turning with Thee; Thou changest not, Thy compassions, they fail not; as Thou hast been Thou forever wilt be." — Thomas O. Chisholm, "Great Is Thy Faithfulness"

Chisholm had no dramatic story — no shipwreck, no prison. He said the hymn simply came from noticing God's "morning by morning" reliability across an ordinary life of frail health and small paychecks. That is the point. Immutability is not exotic, reserved for crises and heroes. It is the steady floor under every unremarkable Tuesday — there before you woke up, there after you stop noticing it.

No distance between you and Abraham

Reading the Bible can feel like looking through glass at a museum exhibit. Moses gets a burning bush; David gets victories; the disciples get breakfast on a beach with Jesus. And we get... a Tuesday. It is easy to assume God was more present, more powerful, more himself back then.

Packer asks the question straight, and answers it:

"Where is the sense of distance and difference, then, between believers in Bible times and ourselves? It is excluded. On what grounds? On the grounds that God does not change. Fellowship with him, trust in his word, living by faith, 'standing on the promises of God,' are essentially the same realities for us today as they were for Old and New Testament believers." — J.I. Packer, Knowing God

The God who heard Hannah hears you. The mercy that met Peter after his denial is the same mercy that meets you after yours. Lamentations 3:22-23 — "The steadfast love of the LORD never ceases; his mercies never come to an end; they are new every morning; great is your faithfulness." Notice the paradox: because God never changes, his mercies are always new. An unchanging fountain produces fresh water every day.

And his attention does not thin out across billions of people, because he is not inside time, rationing his hours like we do. C.S. Lewis explains:

"God is not hurried along in the Time-stream of this universe any more than an author is hurried along in the imaginary time of his own novel. He has infinite attention to spare for each one of us." — C.S. Lewis, Mere Christianity

You are not in a queue. The unchanging God is as fully present to you in this chair, this morning, as he was to anyone in any Bible story you envy.

One worry is worth answering here. Does "unchanging" mean God is frozen — a statue who cannot respond to anything? No. The Bible is full of God responding: hearing prayers, relenting when people repent, acting in history. Packer's point is that God responds out of a character that never shifts. He is not unresponsive; he is unswerving. When God answers your prayer, he has not become someone new. And that is precisely why prayer is worth anything. You are not gambling on his mood. A changeable god might be talked into kindness today and out of it tomorrow. The unchanging God can be counted on to be exactly who he has always said he is — every single time you call.

"Therefore you are not consumed"

Now look closely at today's first verse, because it hides the gospel in a single "therefore." Malachi 3:6 — "For I the LORD do not change; therefore you, O children of Jacob, are not consumed."

Follow the logic. Israel had broken covenant for centuries — idolatry, injustice, cold worship; Malachi's whole book is the charge sheet. By every fair measure, the story should have ended. If God's commitment rose and fell with their performance, they would have been consumed long ago. The only reason they still exist, God says, is that he does not change. His covenant love outlasted their unfaithfulness. Their survival hung not on their consistency but on his.

Now make it personal. If God's love for you depended on your spiritual performance, which week would have ended it? We all have a candidate. The fact that you are still his — still invited to pray, still pursued, still under mercy — is Malachi 3:6 happening to you in real time.

So does ours. The New Testament gathers all of this and stamps it with a name: Hebrews 13:8 — "Jesus Christ is the same yesterday and today and forever." The Jesus who touched lepers has not grown squeamish. The Jesus who welcomed the doubting and the failing has not raised his entry requirements. The Jesus who forgave the thief at the last hour has not tightened his standards since. The cross was not God in an unusually loving mood that has since worn off; it was the unchanging heart of God made visible once and for all. Your salvation rests on a character that cannot be altered — which is why it cannot be lost. Packer lands his chapter exactly there:

"Amid all the changes and uncertainties of life in a nuclear age, God and his Christ remain the same — almighty to save." — J.I. Packer, Knowing God

He wrote that in the shadow of the Cold War. The anxieties have new names now — the headlines update, the diagnosis comes, the friend group shifts. The sentence still holds.

Going Deeper

Take a sticky note and write one promise of God on it — perhaps "The steadfast love of the LORD never ceases" (Lamentations 3:22). Put it somewhere that changes every day: your phone case, the bathroom mirror, a car dashboard. Each time you see it among the swirl of notifications and to-do lists, say one sentence back to God: "You are the same today." That is not a magic ritual. It is training your heart to stand on the one surface that never moves.