Bible Truth Foundations
Part 1 of 3: New Life in Christ
Please begin by answering this question honestly in your own words.
When you think about who you are now that you believe in Jesus, do you feel fundamentally different from who you were before? What has changed and what still feels the same?
2 Corinthians 5:17 (NKJV)
Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new.
The phrase "in Christ" is used over 300 times in the New Testament. It always describes a real union, not a positional title. Read the verse again holding that weight.
The central idea of this lesson
At salvation, something genuinely changed at the deepest level of who you are. You are not a slightly improved version of your former self. You are a new creation. The Christian life is the ongoing process of learning to live from that new reality.
The statement in 2 Corinthians 5:17 is not describing a fresh start with the same raw material. It uses the word ktisis in Greek, which means creation, the bringing into existence of something that did not previously exist. A new creation is not a renovation; it is a new thing. When Paul says "old things have passed away; all things have become new," he is not describing a gradual process that takes years of effort. He is describing something that has already happened at the moment of genuine faith in Christ.
The question that immediately arises is: what, specifically, is new? If you became a Christian last year, you still have the same body. You still have the same memories, many of the same habits, the same personality traits. You may feel very much like the same person. So what changed?
The answer requires understanding how Scripture describes the human person. Paul prays for the Thessalonians in a way that reveals a three-part picture:
1 Thessalonians 5:23 (NKJV)
Now may the God of peace Himself sanctify you completely; and may your whole spirit, soul, and body be preserved blameless at the coming of our Lord Jesus Christ.
Three distinct elements: spirit, soul and body. The body is the physical dimension, visible and tangible. The soul is the inner life of emotion, thought, personality and will: the part most people would describe as "me" when they think about who they are. The spirit is the deepest part, the one the source material describes as the life-giving dimension, the part of a person that is in direct relation to God.
Confidence Declaration
The view that the human person has three distinct parts (spirit, soul and body) is called trichotomy. It is the framework used in this lesson and is held by many charismatic and evangelical traditions. The alternative position, called dichotomy, holds that "spirit" and "soul" in Scripture refer to the same reality from different angles, and that the human person is fundamentally two-part: body and inner person. Both positions are held by careful biblical scholars and both have a long history in Christian thought. This lesson presents the trichotomous view because it is the one underlying the source material, not as a settled theological consensus. The practical teaching about the new birth and the renewal of the mind applies whichever framework you hold.
When Adam and Eve disobeyed God in Genesis 2-3, God had said: "In the day that you eat of it you shall surely die." They did not die physically that day; they lived for centuries. The death that happened was spiritual: a separation of the human spirit from the life of God. This is the background to what Paul describes in Ephesians:
Ephesians 2:1–3 (NKJV)
And you He made alive, who were dead in trespasses and sins, in which you once walked according to the course of this world, according to the prince of the power of the air, the spirit who now works in the sons of disobedience, among whom also we all once conducted ourselves in the lusts of our flesh, fulfilling the desires of the flesh and of the mind, and were by nature children of wrath, just as the others.
"Dead in trespasses and sins" does not mean you did not exist or were not functioning. You were very much alive physically and emotionally. It means your spirit was separated from the life of God. A person in that condition still works, still thinks, still feels, still makes choices. But the deepest dimension of who they are is operating independently, separated from the source it was designed to connect with.
Note
"Death" in biblical terms consistently means separation rather than extinction. Physical death is the separation of soul and spirit from the body. Spiritual death is the separation of the human spirit from God. The word "dead" in Ephesians 2:1 carries this meaning: not the end of existence but the end of a connection that was designed to be the foundation of life. Understanding this resolves the apparent contradiction in Genesis 2:17; God said "you shall surely die" and they did — spiritually, immediately, on the day they disobeyed. Physical death followed much later as a consequence of the same disconnection.
When Jesus spoke to Nicodemus in John 3:5-6, He described what salvation involves as being "born again." Paul's description in Ephesians 2 continues the picture:
Ephesians 2:4–6 (NKJV)
But God, who is rich in mercy, because of His great love with which He loved us, even when we were dead in trespasses, made us alive together with Christ (by grace you have been saved), and raised us up together, and made us sit together in the heavenly places in Christ Jesus.
God made you alive. The Greek word is suzoopoieo: to make alive together with. The action was God's. The result is genuine: you were dead and are now alive. Not improved. Alive. The same word family that describes Christ's resurrection is applied here to the believer's new birth. This is not metaphor for a gradual improvement process; it is the language of resurrection applied to the human spirit.
Galatians 4:6 (NKJV)
And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, "Abba, Father!"
God placed His own Spirit within you. Not a representative of His Spirit. Not a fraction of it. The Spirit of His Son, sent into your heart. This is the content of the new birth: a human spirit that was dead and separated from God has been made alive and is now indwelt by God Himself.
Going Deeper
Colossians 1:26-27 (NKJV) describes this as the great mystery now revealed: "the mystery which has been hidden from ages and from generations, but now has been revealed to His saints. To them God willed to make known what are the riches of the glory of this mystery among the Gentiles: which is Christ in you, the hope of glory." The phrase "Christ in you" was scandalous to first-century Jewish thought, which placed God at an unbridgeable distance from sinful humanity. The New Testament announces that the very opposite is now true: the God who seemed most remote has made His home in the spirit of the believer. This is not a theological abstraction; Paul describes it as the ground of all hope.
At the new birth, the believer's spirit was not simply improved or partially renewed. It was sealed:
Ephesians 1:13 (NKJV)
In Him you also trusted, after you heard the word of truth, the gospel of your salvation; in whom also, having believed, you were sealed with the Holy Spirit of promise.
The image of a seal is significant: something that has been closed and secured against contamination. The source material for this lesson uses the picture of preserving jars: sealed airtight so that nothing impure can enter after the seal is applied. Your spirit was not left partially finished waiting for your behaviour to improve it; it was sealed at the new birth in the condition that God created it: righteous, holy and complete in Christ.
1 Corinthians 6:11 (NKJV)
And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God.
The word "were" is past tense. Washed, sanctified and justified are completed actions, already accomplished. Paul is writing to a church community with real ongoing struggles and sins, and he is telling them that these three things are already true of them in the deepest sense. What has been done in their spirits is not undone by what happens in their behaviour.
Here is one of the most practically important truths in this lesson. If the spirit is already new, sealed and complete, why do so many believers still struggle with the same patterns, the same fears, the same failures they had before they came to Christ? The answer is that there are three parts to the human person and only one of them changed at the moment of salvation.
The body still has its appetites and weaknesses. The soul — the mind, the emotions, the will — still carries memories, habits, ingrained patterns of thought and emotional responses shaped by years of living independently from God. The spirit is new; the soul and body are in a process of transformation that takes time and requires deliberate engagement with Scripture.
Ephesians 4:23–24 (NKJV)
And be renewed in the spirit of your mind, and that you put on the new man which was created according to God, in true righteousness and holiness.
The instruction is to be renewed in the spirit of the mind: to allow the truth of who you are in your spirit to shape and transform how you think. The new man is already created; the task is to put it on, to learn to live from the identity that already exists in your spirit rather than from the old patterns that still exist in your unrenewed soul.
Caution
This teaching is sometimes misapplied in two directions. The first is to conclude that because the spirit is new and complete, ongoing sin and failure in behaviour do not matter and require no attention. That conclusion is not supported here: Ephesians 4:23-24 is a command to renew the mind and put on the new man, which implies active effort. The second misapplication is to conclude that because you still struggle with old patterns, the new birth did not really happen or was not complete. Neither conclusion follows. The struggle is real and expected; it is the soul catching up with what has already been settled in the spirit. Acknowledge the struggle; do not let it define your identity.
Practical Tip
When you are tempted to define yourself by your most recent failure, bring 2 Corinthians 5:17 and 1 Corinthians 6:11 into the conversation. The question is not "how did I perform?" but "who am I?" Your performance on any given day is a record of your soul's current state of renewal; your identity is what God has already established in your spirit. These are not the same thing. Practise distinguishing between them. Say to yourself honestly: "I behaved like the old person I used to be. But I am not that person; I am a new creation. Let me bring my thinking and my choices into alignment with who I actually am."
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| Question | My Answer | Group Discussion Notes |
|---|---|---|
| Read 2 Corinthians 5:17. Paul says "old things have passed away; all things have become new." If someone asked you what specifically became new at your salvation, what would you say? | ||
| Read Ephesians 2:1-3. Paul describes the state before salvation as being "dead in trespasses and sins." The lesson explains that death here means separation, not extinction. Does that understanding change how you think about what salvation rescued you from? | ||
| Read Ephesians 2:4-6. Paul uses resurrection language to describe the new birth: "made us alive together with Christ." What does the strength of that language tell you about how significant the change at salvation is? | ||
| Read 1 Corinthians 6:11. The three verbs — washed, sanctified, justified — are all past tense. How does it change your daily life if those are already settled facts rather than things you are still working toward? | ||
| Read Ephesians 4:23-24. Paul commands believers to "be renewed in the spirit of your mind" and "put on the new man." Why do you think an active command is needed if the new creation already exists? What does that suggest about the role of the mind? |
These questions are designed for open conversation at any level of experience. There are no trick questions and no single correct answer.
Identity in Christ is not a doctrine to agree with and set aside. It is a truth that must be rehearsed, practised and returned to, especially when your experience contradicts it. These applications suggest where to begin.
| Context | How I Apply This |
|---|---|
| How you speak about yourself | Begin paying attention to the language you use about yourself, particularly after failure. Phrases like "I am such a mess," "that is just who I am," or "I will never change" are identity statements made from the old framework. They may describe your behaviour; they do not describe your spirit. This week, when you catch yourself making a negative identity statement, pause and reframe it: "I behaved in a way that does not match who I am. I am a new creation. I am washed, sanctified and justified." The reframe is not denial; it is truth. |
| In how you read Scripture | Ephesians 4:23-24 says the mind is renewed by being filled with truth. This does not happen passively. Choose one passage this week that directly addresses your identity in Christ: 2 Corinthians 5:17, Ephesians 1:3-6 or Colossians 1:26-27 are natural starting points. Read it slowly, repeatedly, and ask: what does this say is already true of me? Let the answer sit in your mind before you move on to anything else. |
| When someone you know is struggling with shame | The teaching in this lesson is specifically designed for people whose experience of themselves does not match what God says about them. When someone you know is trapped in shame after failure, the most useful thing is not a pep talk or an instruction to try harder. It is 1 Corinthians 6:11 spoken clearly: "Such were some of you. But you were washed, sanctified, justified." The past tense is the pastoral gift: it describes who they are now, regardless of what just happened. |
Tap each card to reveal the answer.
What does Paul say about anyone who is in Christ?
2 Corinthians 5:17
"If anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new."
2 Corinthians 5:17 (NKJV). A new creation, not a renovation.
What does "dead in trespasses and sins" mean in Ephesians 2:1?
Not extinct, but separated from God. The human spirit was alive but cut off from the life of God. Death in Scripture means separation, not ceasing to exist. Salvation is the reconnection.
What are the three parts of the human person in 1 Thessalonians 5:23?
1 Thessalonians 5:23
Spirit, soul and body. The spirit was made completely new at salvation. The soul (mind, emotions, will) is being progressively renewed. The body will be transformed at resurrection.
What three things does 1 Corinthians 6:11 say happened to believers, and in what tense?
1 Corinthians 6:11
"You were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God."
1 Corinthians 6:11 (NKJV). Past tense. Already accomplished.
What does Colossians 1:27 call the great mystery now revealed?
Colossians 1:27
"To them God willed to make known what are the riches of the glory of this mystery among the Gentiles: which is Christ in you, the hope of glory."
Colossians 1:27 (NKJV). Not Christ beside you, or above you. In you.
What does Ephesians 4:23-24 instruct believers to do, and what does the new man look like?
Ephesians 4:23–24
"Be renewed in the spirit of your mind, and put on the new man which was created according to God, in true righteousness and holiness."
Ephesians 4:23–24 (NKJV). The new man already exists; the mind must be brought into alignment with it.