With God, there is no room for improvement. He has always been, and always will be, utterly and delightfully perfect in every way.

I recently watched a short film that still haunts me. It was actually from a comedy show, but it had such a sense of sadness to it.
A man goes into a train station. At the counter, he holds up a photo for the ticket agent and says, “This is a bit of a strange question, but can you tell me how to get there?”
The ticket agent looks at the photo and she says: “Oh yes, that’s Millport. What you’ve got to do is get the train to a place called Largs, then you get the ferry . . .” And the man says: “No, I know how to get to Millport. But can you tell me how to get to there?” And he points to the photo again.
He says: “I took that photo when I was about 16; that’s me there. That summer was amazing. Hanging out with friends all day, not worrying about tomorrow, just laughing, having a great time, jumping off the pier, swimming around, and it was like summer seemed to go on forever.” And after he reminisces about it for a while, he goes quiet. And then he says: “I don’t want to be here anymore. I want to be there. So can you tell me . . . how do I get there?”
And she looks at him and says, “You can’t do that; I’m sorry.”
So he says, “Ah, just give me a return to Largs then.”
Places never stop changing. People too. They can’t stay the same, and neither can we. Often, that simple fact is enough to break our heart.
But there is One who is the same yesterday, today, and forever.
When we talk about God like this, we’re talking about His immutability. Immutability is the biblical idea that God is unchanging in His character, will, and His promises.
James chapter 1, verse 17 puts it like this: “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.”
Numbers chapter 2 says, “God is not man, that he should lie, or a son of man, that he should change his mind.” In Malachi chapter 3, God says, “I the Lord do not change.” Hebrews talks about “the unchangeable character of his purpose,” and in 2 Timothy we read that “if we are faithless, he remains faithful—for [God] cannot deny himself.” (In other words, God cannot deny His own immutability. His unchangeability is unchangeable.)
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Written by Derek J. Brown |
Saturday, April 30, 2022
If we are ever wavering between confidence and doubt with regard to our standing with God, it will be difficult, if not impossible, to be decisive in spiritual matters. Obedience often requires earthly sacrifice, and if we are unsure that we possess eternal life, we will be unable to endure earthly trouble for the sake of Christ. Assurance is essential to the Christian life. If you have fallen into a pattern of doubt and have neglected the assurance of your salvation, let this be the day you heed the Scripture’s exhortations and, by God’s grace, find your footing through faith in God’s sure promises.

I remember a conversation during college in which a friend confessed to me that he did not think it was necessary, or even possible, for a believer to gain assurance of their salvation. I was surprised by his comments, especially because we were attending a Christian college that emphasized all the biblical truths related to assurance of salvation: election, grace, faith, repentance, substitutionary atonement, the fully deity and humanity of Christ, and eternal security.
As it turns out, this was not an isolated incident. Over the past several years as I’ve wrestled personally with the issue of assurance and had opportunity to speak to others about it, I’ve found that many Christians do not rightly understand the biblical basis or importance of this doctrine. Assurance is essential to genuine Christianity and central to the New Testament’s theological framework, yet plenty of Christians are content to walk through life without the sure knowledge that they belong to Christ. There are, of course, those who claim assurance who have no right to do so; but it seems that there are an equal number of professing Christians who have either resigned to the fact they will never have assurance or that they don’t really need it.
What is assurance?
When I use the phrase “assurance of salvation” I am referring to a professing Christian’s confidence that he is, through the gospel, presently in right standing with God and will, upon his death or at the return of Christ, enter into eternal life and be delivered from the penalty of eternal condemnation. Assurance is the present intellectual and heart-felt conviction that I am, at this moment and for eternity, at peace with the living God through Jesus Christ.
But is such assurance really that important? In light of our sin and struggles with faith, shouldn’t we be content with the reality that we may or may not achieve assurance in this lifetime? While Scripture acknowledges that we will wrestle with sin and a lack of faith, it also consistently calls professing believers to gain assurance of their salvation. Scripture doesn’t suggest that those who are without assurance of their right standing with God are not necessarily saved, but neither does it applaud those who lack it, as though being without assurance was a mark of spiritual humility and maturity. Here are five reasons why assurance is essential for the Christian life.
1. Assurance is God’s will for you.
The first reason we must say that assurance is essential for the Christian life is because assurance is God’s will for you. Listen to the language of the New Testament (emphasis added):

Colossians 2:1-3: For I want you to know how great a struggle I have for you and for those at Laodicea and for all who have not seen me face to face, that their hearts may be encouraged, being knit together in love, to reach all the riches of full assurance of understanding and the knowledge of God’s mystery, which is Christ, in whom are hidden all the treasures of wisdom and knowledge.

Hebrews 6:11-12: And we desire each one of you to show the same earnestness to have the full assurance of hope until the end, so that you may not be sluggish, but imitators of those who through faith and patience inherit the promises.

Hebrews 10:22: Let us draw near with a true heart in full assurance of faith, with our hearts sprinkled clean from an evil conscience and our bodies washed with pure water.

Hebrews 11:1: Now faith is the assurance of things hoped for, the conviction of things not seen.

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Theologians today often talk about the kingdom of God being “already and not yet.” This is an attempt to express the New Testament’s teaching that the Son of God came to inaugurate the kingdom of God in this world at his incarnation “already” but that he will “not yet” consummate it until he returns at the end of this age. And by “kingdom of God” we mean the new creation, the new heavens and new earth pictured so clearly, for example, in Revelation 21-22. This kingdom being “already” is foundational for describing Christ’s work at his first advent, which has impacted cosmic history to its core.
When was the kingdom of God inaugurated?
To see that the kingdom of God has been inaugurated, take just one aspect of it as an example: the kingship of Jesus Christ over the new creation. By virtue of his work of redemption for his people, all authority in heaven and on earth is his (Matt. 28:18; Col. 2:10, 15) both in this age and in the world to come (Eph. 1:20-22; Phil. 2:9-11) such that he now “upholds the universe by the word of his power” (Heb. 1:3). At Christ’s triumphant ascent to his Father’s right hand in resurrection glory, he took his seat with his Father on his eternal throne (Rev. 3:21), from which life in abundance will flow eternally (John 10:10) as the center of the new creation (Rev. 22:1). This means that all who are united to Christ Jesus by faith in him are themselves caught up into new creation existence already: “Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come” (2 Cor. 5:17; cf. Eph. 2:10).
However, granted that the kingdom of God is “already” in some important ways, this raises the question of exactly when it was inaugurated. We read in the New Testament, for example, in places which summarize the proclamation of both John the Baptist and Jesus, that the kingdom of God had drawn near in their ministries (Matt. 3:1; 4:17; cf. Luke 10:9, 11). But when was it inaugurated? I had breakfast with the managing editor of Beautiful Christian Life recently, and she asked this excellent question. The following is a brief answer sketching out some key phases.
The King’s Birth
In his book on the Holy Spirit, the English puritan John Owen writes:

We have formerly declared the work of the Holy Spirit in preparing and forming the natural body of Christ. This was the beginning of the new creation.[1]

Owen is referring to the fact that both Matthew and Luke testify that the birth of Christ was effected by the Holy Spirit through the conception of the virgin Mary (Matt. 1:18, 20; Luke 1:35). And it is fair to say that where the Holy Spirit appears in the New Testament, we are dealing with some activity of new creation. And since the kingdom of God is the new creation, the Spirit was bringing in the kingdom of God at the conception and birth of Jesus.
The birth of Christ, then, was a kingdom event. The way to approach this is to observe that the kingdom of God at this point was focused upon the entrance of its messianic king:

And the angel said to her, “Do not be afraid, Mary, for you have found favor with God. And behold, you will conceive in your womb and bear a son, and you shall call his name Jesus. He will be great and will be called the Son of the Most High. And the Lord God will give to him the throne of his father David, and he will reign over the house of Jacob forever, and of his kingdom there will be no end.”Luke 1:30-33; cf. Luke 8:28

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