π The God Who Does Not Change
"I am the Lord, I change not; therefore, ye sons of Jacob are not consumed." β Malachi 3:6
This study is written for those who are weary, those who are walking through the valley of the shadow of death, and those who love someone who is. May you find in these pages not a philosophical argument, but a living Rock β the same yesterday, today, and forever.
Why This Subject Matters So Muchβ
Someone once said that "the proper study of mankind is man." That may be true. But I believe there is something even more important for a child of God to study: God himself β his name, his nature, his character, his works, and his love.
This is the highest possible knowledge. It is a subject so vast that all our proud little thoughts are swallowed up in it. Other subjects make us feel clever. This one makes us feel small β and rightly so. Yet there is something wonderfully healing in it too. The mind that thinks often about God grows bigger, not smaller. The soul that meditates on the Father finds rest that nothing else can give.
Are you full of sorrow? Are you afraid? Then come and think about God. There is a cure for every wound in Christ. There is a quieting of every storm in the Father. There is a balm for every sore in the Holy Spirit. If you want to drown your cares, the deepest sea you can plunge into is God himself β and you will come up from that sea rested, refreshed, and unafraid.
This is the one thing I want to set before you now: God does not change.
Part One: An Unchanging Godβ
1. God Does Not Change in His Beingβ
We cannot fully explain what God is. He is pure Spirit β not made of anything, not composed of parts, not wearing out. Everything else in the universe is changing. Mountains erode. Oceans evaporate. Even the sun is slowly burning through its fuel. Our own bodies are constantly replacing their cells. Everything material flows and shifts like a river.
But God is not like that. He is spirit, and pure spirit does not change. There are no wrinkles on his eternal brow. He has seen every age come and go, and he is still exactly what he has always been. "He is the same, and his years have no end" (Psalm 102:27).
Even when the Son of God took on human flesh β when the eternal Word became a baby in Bethlehem β his divine nature did not change. God did not stop being God when Jesus was born. The same God who stretched out the heavens lay in a manger. The same God who holds the keys of death hung on the cross. His incarnation was a union, not a transformation. He remained the great I AM, the unchanging one.
2. God Does Not Change in His Characterβ
Whatever God was like at the beginning, he is like now, and will be like forever.
- Was he powerful? When he spoke the world into existence from nothing β yes, he was all-powerful. Is he powerful now? His arm has not weakened. Not one particle of strength has left him.
- Was he wise? When he planned the way of salvation before the foundations of the world, yes, he was perfectly wise. Is he still wise? His knowledge has not diminished by a single fact.
- Was he just? Yes, always. Is he just now? Absolutely. He has not quietly relaxed his standards.
- Was he good, generous, patient, merciful? Yes in the beginning β and yes still. "His steadfast love endures forever" (Psalm 136).
You can take any description of God from the earliest page of Scripture and write over it: still true today, still true tomorrow, still true when sun and stars have burned out.
3. God Does Not Change in His Plansβ
A man changes his plans when unexpected obstacles arise, or when he runs out of resources, or when he realizes he planned badly. None of these can happen to God.
God is not surprised by anything. He has unlimited resources. He cannot plan wrongly. So he never needs to revise his purposes. What he has decreed will come to pass. What he has promised will be fulfilled. What he has committed to doing, he will do β fully, perfectly, on time.
"My counsel shall stand, and I will accomplish all my purpose." β Isaiah 46:10
Some people look at the story of King Hezekiah and think God changed his mind. The prophet Isaiah told him he would die, but then God healed him and gave him fifteen more years. But God always knew this. He knew that Hezekiah's son Manasseh would be born in those fifteen years β a son who was in the very bloodline that eventually led to Jesus Christ. God's word through Isaiah was describing the human situation: humanly speaking, Hezekiah's illness was fatal. God had already planned the healing. The plan never changed.
4. God Does Not Change in His Promisesβ
Every promise God has ever made stands. Not one syllable has ever been taken back. Not one word has ever failed.
Think about what this means. If you have a promise from God in your Bible β one that belongs to you as his child β that promise is as solid as God himself. It cannot be cancelled. It cannot expire. It cannot weaken over time.
"By two unchangeable things, in which it is impossible for God to lie..." β Hebrews 6:18
The gospel is not "yes today, no tomorrow." It is yes and amen, always (2 Corinthians 1:20).
Here is a word of pastoral honesty: there are mornings when a promise that used to be sweet feels flat and cold. Don't conclude that the promise has changed. You changed β perhaps you wandered, or you are in pain, or your spiritual appetite is low. The honey is still in the rock. The promise is still alive. Throw yourself flat onto it and rest there. Don't try to stand on it elegantly; lie down on it and let it hold you.
5. A Word That Must Not Be Softened: God Does Not Change in His Warningsβ
If every promise is immutable, then every warning is immutable too. This is not comfortable β but it must be said, for love's sake.
"Whoever does not believe is condemned already." β John 3:18
"He that believeth not shall be damned." β Mark 16:16
No amount of being moral, decent, kind, or religious changes that verdict if the heart has never trusted Christ. The issue is not how good you are. The issue is whether you are sheltered in him.
That warning is not going away. A thousand years into eternity it will still stand. A million years in, it will still stand. This is not cruelty β it is honesty, the most urgent honesty there is. Because God does not change, there is no later opportunity to renegotiate. The time to fly to Christ is now, while he is offered freely.
If you are reading this and you have not run to him β run now. He is still the one standing with arms open: "Come to me, all who are weary and burdened, and I will give you rest" (Matthew 11:28).
6. God Does Not Change in His Love for His Ownβ
For those who are in Christ β those who have believed and been united to him β this is the sweetest truth of all:
"I have loved you with an everlasting love." β Jeremiah 31:3
Not a temporary love. Not a love that fluctuates with your performance. An everlasting love.
If God could stop loving one of his own, he could stop loving all of them. If one redeemed soul could be lost, the whole gospel falls apart. But that will never happen, because his love does not change.
"Did Jesus once upon me shine? Then Jesus is for ever mine."
Those whom God has called, he will justify. Those he justifies, he will sanctify. Those he sanctifies, he will glorify (Romans 8:30). The chain has no weak link.
Interlude: God Always Makes the Wayβ
Before we go further, it is worth pausing to see this pattern in Scripture: God has always acted to bring his people through what they could not survive on their own. He changed nothing about his holiness β that never bends. But he provided the way through every time.
The Fall: God Covered What We Could Not Coverβ
When Adam and Eve sinned in the Garden, they made coverings for themselves out of leaves β thin, fragile, embarrassingly inadequate (Genesis 3:7). But God, before he sent them out of the Garden, made for them garments of skin (Genesis 3:21).
Something had to die for those garments to exist. An animal was slain. Blood was shed. And God himself clothed his broken, ashamed children with what only a death could provide. This is not a side-note in the story. It is the first picture of the whole gospel: we cannot cover ourselves; God must provide the covering through sacrifice.
Abraham: God Walked the Path He Could Not Walkβ
In Genesis 15, God made a covenant with Abraham. In the ancient Near East, a covenant was sealed like this: animals were cut in half, their pieces laid in two rows, and both parties would walk between them β meaning, "May what happened to these animals happen to me if I break this covenant."
Abraham fell into a deep sleep. He could not walk that path, and God knew it. If Abraham had to walk between those pieces β if the covenant depended on Abraham keeping his end β he would be destroyed. So God, in the form of a smoking fire pot and a blazing torch, walked between the pieces alone (Genesis 15:17).
God took the oath. God made the promise. God accepted the curse of breaking it β upon himself. Abraham could not. So God went where Abraham could not go, and sealed the covenant in his own name.
This is the heart of the gospel. We could not keep God's law. We could not pay our own debt. So the Son of God walked where we could not walk β into death, into the curse β and bore it alone. The covenant of grace stands on his faithfulness, not ours.
Noah: God Provided the Ark Through the Judgmentβ
The world had filled itself with violence and corruption (Genesis 6:11-12). God's judgment came β not because he changed, but precisely because he did not. His justice is as unchanging as his love.
But he did not pour out that judgment without providing a way through it. He gave Noah an ark. The same flood that destroyed the unbelieving world carried the ark. The same waters of judgment became the floor under the feet of the redeemed.
Notice: Noah did not have to outswim the flood. He simply had to be inside the ark.
Christ: The Greatest Arkβ
The judgment of God on human sin is real and total. But God has provided an ark greater than Noah's.
Jesus Christ took the full weight of divine wrath upon himself at the cross. "He himself bore our sins in his body on the tree" (1 Peter 2:24). "God made him who had no sin to be sin for us, so that in him we might become the righteousness of God" (2 Corinthians 5:21).
Those who are in Christ are in the ark. The judgment has already fallen β on him. The flood has already come β and he bore it. We, sheltered in him, are carried through.
You do not need to be strong enough to survive the judgment. You only need to be inside.
Part Two: Who Are the "Sons of Jacob"?β
God says his immutability is the reason "the sons of Jacob are not consumed." Who are these people?
They are the chosen. Jacob was not chosen because he was better than Esau β in many ways, he was worse. He was chosen by grace, before he had done anything good or bad (Romans 9:11). The sons of Jacob are those chosen by God's free grace, not by their own merit.
They are people with a title they did not earn. Jacob obtained his birth-right not by right but by grace β and through remarkable means. The sons of Jacob are people who have been given a status they did not deserve: the right to be called children of God, heirs of eternal life, citizens of heaven. Not because they earned it, but because God gave it.
They are people who have known God personally. Jacob did not just know about God. He met him. At Bethel he saw the angels on the ladder (Genesis 28:12). At Peniel he wrestled with the angel of God and would not let go until he received a blessing (Genesis 32:26). The sons of Jacob are people who have had real, personal dealings with the living God β not just intellectual agreement with doctrines, but encounters with a person.
They are people who have suffered greatly. Jacob's life was full of grief. He was cheated, betrayed, bereaved. He buried his beloved Rachel. He thought he had lost Joseph. He was stripped of nearly everything, over and over. Yet God did not leave him. "I am with you and will keep you wherever you go" (Genesis 28:15).
If you have suffered greatly β if life has taken more from you than you thought you could bear β you are in good company. The sons of Jacob are cross-bearers.
They are people of faith and prayer. Jacob was not a perfect man, but he was a man who held on. "I will not let you go unless you bless me" (Genesis 32:26). That is faith. That is prayer. The sons of Jacob are people who believe and who wrestle in prayer, even when they are limping.
Part Three: The Benefit β They Are Not Consumedβ
Because God does not change, those who are his are not destroyed.
Think of what this means. Given our sins β our wandering, our unbelief, our cold hearts, our repeated failures β we should have been destroyed long ago. The only reason we have not been is that God does not change. His love is not subject to our performance. His commitment to his children is not contingent on their faithfulness.
"There is nothing in us to love at first," Spurgeon observed, "so there can be less now." And yet God loves still. His love was never based on our goodness, so our failures cannot cancel it. He loved us out of pure sovereign grace, and he goes on loving in the same pure sovereign grace.
Think of every time you came close to some terrible fall β some sin that would have wrecked you, some moment of despair that could have taken you under. What kept you? God's unchanging love. A strong hand pulled you back. It was not your virtue. It was his grip.
"I give them eternal life," Jesus said, "and they will never perish, and no one will snatch them out of my hand" (John 10:28).
A Word for Those Who Are Dyingβ
If you are near the end of your life β or if you love someone who is β this is the word for you:
The God you have trusted is the same God you will meet. He has not changed. He will not change. He is not more or less forgiving than he was when you first believed. He has not quietly revised his opinion of you. He is still the Father who ran down the road to meet the returning son (Luke 15:20). He is still the shepherd who searched until he found the one lost sheep (Luke 15:4). He is still the one who said, "I will never leave you or forsake you" (Hebrews 13:5).
The valley of the shadow is dark, but it is not abandoned. Psalm 23 does not say "I will fear no death" β it says "I will fear no evil, for you are with me." The presence of the unchanging God is what makes the valley walkable.
You are going to meet the one who:
- Covered Adam and Eve with his own provision
- Walked alone between the pieces so that the covenant would stand
- Raised Noah above the flood in an ark of grace
- And finally descended into the flood of judgment himself, so that his own would be brought through
He is the same God. He has not changed. And he is not letting go.
"Trust him β he will ne'er deceive you. Though you hardly of him deem; He will never, never leave you, Nor will let you quite leave him."
Conclusionβ
"I am the Lord, I change not; therefore, ye sons of Jacob are not consumed."
Everything in this world changes β friends, health, circumstances, even ministers and churches. But there is one name on which the word change can never be written. There is one heart that has never altered. That heart is God's. That name is Love.
If you are his β if you have believed in the Son who bore the judgment for you, if you are inside the ark β then you are safe. Not because you are steady, but because he is.
Rest there. He has not changed. He will not change.
"Jesus Christ is the same yesterday and today and forever." β Hebrews 13:8