The sermon teaches that God is unchangeable in His essence, character, knowledge, purposes, promises, and love. This immutability provides the basis for confidence in the gospel and for the doctrine that those whom God calls and justifies will be preserved to glorification. Spurgeon contrasts God’s constancy with human weakness, sin, and fluctuating faith, urging believers to rest wholly on Scripture’s promises. The passage’s assurance is not grounded in human merit but in God’s sovereign and everlasting grace.
Theological center: God’s immutability guarantees the certainty of His covenant promises, sovereign saving purpose, and enduring love for His elect.
Applications: Study the nature of God · Rest on God’s promises · Trust God’s preserving love · Consider divine immutability
Primary texts: Malachi 3:6 · Hebrews 10:31 · John 1:12
“I am the LORD, I change not; therefore ye sons of Jacob are not consumed.” Malachi 3:6 IT has been said by someone that “the proper study of mankind is man.” I will not oppose the idea, but I believe it is equally true that the proper study of God’s elect is God—the proper study of a Christian is the Godhead. The highest science, the loftiest speculation, the mightiest philosophy, which can ever engage the attention of a child of God, is the name, the nature, the person, the work, the doings, and the existence of the great God whom he calls his Father. There is something exceedingly improving to the mind in a contemplation of the Divinity. It is a subject so vast, that all our thoughts are lost in its immensity—so deep that our pride is drowned in its infinity. Other subjects we can comp…