Summary
Immutability
Among the attributes of God, immutability is the truth that God does not change. He is constant in His being, His character, His decrees, and His promises. Scripture proclaims this plainly: "You are the same, and your years have no end" Psalm 102:27; "For I the Lord do not change" Malachi 3:6; and "Every good gift and every perfect gift is from above, coming down from the Father of lights, with whom there is no variation or shadow due to change" James 1:17. In a world of constant change—and lives of constant change—this is a deeply comforting word.
A Puzzle in Exodus 32
The doctrine raises an honest question when we read Exodus 32. While Moses is on Sinai receiving the commandments—including "you shall have no other gods"—the people fashion a golden calf and call it their god. The Lord's anger burns hot, and notice the distancing language: He tells Moses to go down to "your people whom you brought up out of the land of Egypt" Exodus 32:7, no longer "my people." Moses pleads on their behalf, and the text says, "And the Lord changed his mind about the disaster that he had spoken of bringing on his people" Exodus 32:14.
How can the unchanging God change His mind?
Decree and Promise vs. Stated Intention
Scripture interprets Scripture, and the key is to distinguish between God's decrees and promises on the one hand, and His stated intentions on the other. When God decrees or promises something—as when He swore by Himself to Abraham, "I will surely bless you, and I will surely multiply your offspring as the stars of heaven" Genesis 22:16-17—that word is unconditional. You can take it to the bank.
But when God speaks of intention, conditionality is built into the very word. Listen to Jeremiah 26:3: "It may be they will listen, and every one turn from his evil way, that I may relent of the disaster that I intend to do to them." A promise is firm; an intention can be answered with repentance and intercession. It is the difference between a parent saying, "I promise," and a parent saying, "I'm considering it."
What Immutability Actually Guards
So immutability concerns God's essence, character, decrees, and promises—not every stated intention. In Exodus 32, God's "changing of mind" is not the undoing of His unchangeableness; in fact, Moses appeals precisely to God's immutability. He pleads, "Remember Abraham, Isaac, and Israel, your servants, to whom you swore by your own self" Exodus 32:13. Moses holds God to His sworn promise—and God, who cannot deny Himself, keeps it. To break a decree would be for God to cease being God.
Comfort Amid the Sea of Change
We live in a sea of change. Things change, and we change. We long to freeze certain moments, or to find something constant we can hold onto. In the swirl of it all stands the immutable God—unchanging in essence, character, decree, and promise. He meets us in the constancy of our sinfulness with the constancy of His Gospel: "I promise, in the name of Jesus Christ, your sin is forgiven. I promise, in the waters of Baptism, you were claimed as my child." His promise is sealed in the cross and empty tomb of His Son, of whom Scripture testifies, "Jesus Christ is the same yesterday and today and forever" Hebrews 13:8.
Amid a changing world and changing lives, we rely on Him.
Video citations
- “Immutability” 6-19-22 — What you're open your Bibles, please, with me to the Old Testament to Exodus 30 2 for our study today. Exodus 32, if you're using a Pew edition of Holy Scripture, you're going to find that on page…