Book: Christian Discipleship 101 – Chapter 18: Identity in Christ
- Dr. Layne McDonald
- 6 days ago
- 9 min read
"Therefore, 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)
Who are you?
No, really. If I were to sit down with you over a cup of coffee and strip away your job title, your bank account balance, your family history, and your social media following, who would be left? For many of us, that’s a terrifying question. We live in a world that is obsessed with identity, yet deeply confused about how to find it. We are told we can be whoever we want to be, yet we feel more trapped than ever.
As we continue our Christian leadership Bible study through this series, we have to tackle the most foundational issue of the human heart: Identity. If you don't know who you are, you will never know what to do. If you don't know whose you are, you will spend your life trying to prove your worth to people who weren't meant to define it in the first place. Whether you are parenting with biblical truth or seeking the best Christian worldview books to ground your family, everything starts with the "New Creation" reality of 2 Corinthians 5:17.
In this chapter, we are going to dive deep into what it means to be "in Christ." We are going to dismantle the lies that have held you hostage and replace them with the legal, spiritual, and eternal reality of your adoption as a son or daughter of the Most High God.
The Great Identity Crisis
We are living through what historians may one day call the "Era of the Fractured Self." Everywhere we look, people are trying to construct an identity out of the raw materials of their preferences, their pain, and their performance. We see it in our youth, we see it in our boardrooms, and if we are honest, we see it in our mirrors.
The problem with a self-constructed identity is that it is inherently fragile. If your identity is based on your career, what happens when you lose your job? If your identity is based on your health, what happens when you get a diagnosis? If your identity is based on being a "good parent," what happens when your child wanders?
As believers, we are called to a different way. We don't construct our identity; we receive it. Our identity is not a DIY project; it is a gift from the Creator. In the Assemblies of God tradition, we believe that salvation is more than just a ticket to heaven; it is a fundamental transformation of the person. You aren't just a "better version" of your old self. You are a new creation.
1. The New Creation Reality (2 Corinthians 5:17)
When Paul wrote to the church in Corinth, he wasn't just being poetic. The Greek word for "new" in this passage is kainos, which refers to something that is not just new in time, but new in nature. It’s a completely different kind of thing.
Think about it this way: When you put a fresh coat of paint on a rusty car, it’s "new" in appearance, but it’s still a rusty car underneath. But when God saves a person, He doesn't just paint them. He takes the old, rusted-out frame of our sinful nature and replaces it with the brand-new, high-performance engine of His Spirit.
The Death of the "Old Man"
To understand who you are now, you have to understand who you were. Before Christ, you were "dead in your trespasses and sins" (Ephesians 2:1). You weren't just a "good person who made some mistakes." You were a rebel against the Kingdom, separated from God, and defined by a nature that was bent toward self.
But when you came to Christ, a spiritual miracle occurred. Paul tells us in Romans 6:6 that our "old man" was crucified with Him. This is a legal fact. Your old self, the one defined by guilt, shame, and the power of sin, is dead. It has no legal claim over you anymore. This is a vital lesson for anyone engaged in parenting with biblical truth; we must teach our children that their past mistakes do not have the final word on their future.
The Birth of the "New Man"
Now, look at the second half of 2 Corinthians 5:17: "behold, all things have become new." This is the present reality. Right now, as you read this, your spirit is alive to God. You have been given a new heart, a new mind, and a new destiny.
In our Christian leadership Bible study groups, we often focus on doing for God. But leadership in the Kingdom flows from being. You cannot lead others into a freedom you haven't embraced yourself. You are not a "sinner saved by grace" who is still primarily a sinner; you are a Saint who sometimes sins, but whose fundamental nature is now righteous because of Jesus.
2. The Spirit of Adoption
One of the most beautiful themes in all of Scripture is the concept of adoption. In the Roman world where the New Testament was written, adoption was a powerful legal act. When a person was adopted, all their old debts were canceled, and they were given the full legal rights and name of their new father. They became an heir.
From Slave to Son
Galatians 4:4-7 tells us: "But when the fullness of the time had come, God sent forth His Son... to redeem those who were under the law, that we might receive the adoption as sons. And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, ‘Abba, Father!’"
Notice the progression:
Redemption: He bought you out of the slave market of sin.
Adoption: He brought you into His home as a family member.
Presence: He put His Spirit in you so you can feel the reality of that relationship.
This is the "Abba" cry. "Abba" is an Aramaic term of endearment, much like "Daddy" or "Papa." The God who created the galaxies, who sustains the universe by the word of His power, invites you to call Him "Daddy." This isn't just theological jargon; it’s the heartbeat of the Christian life.
Position vs. Condition
We often confuse our position with our condition.
Your Position is that you are a beloved child of God, fully accepted, and seated with Christ in heavenly places. This never changes. It is based on Christ’s work.
Your Condition is your day-to-day struggle with sin, emotions, and circumstances. This fluctuates.
The enemy wants you to believe that your condition defines your position. He wants you to think that because you had a bad day or lost your temper, you are no longer a "good" Christian or that God is disgusted with you. But the truth is that your position as an adopted child is anchored in the finished work of Jesus. You don't work for your Father’s love; you work from it.
For those looking for Christian worldview books, understanding the difference between position and condition is the key to mental and spiritual health. It allows us to fail without falling into despair and to succeed without falling into pride.
3. Exposing the Lies of the Enemy
If you are a new creation and an adopted child of the King, why do you still feel so... ordinary? Or worse, why do you feel like a failure?
The answer is simple: The enemy is a liar. John 8:44 tells us that the devil is the father of lies. He cannot change your identity, but he can change your experience of that identity by feeding you falsehoods. He is a squatter who tries to convince you he still owns the house, even though the deed has been signed over to the King.
Let’s look at the most common identity lies believers face:
Lie #1: "I am my past."
Many of us carry "the old man" around like a corpse strapped to our backs. We think our identity is found in our greatest failures, our deepest traumas, or our family’s reputation.
The Truth: In Christ, your past is buried. God says, "I will remember their sins and their lawless deeds no more" (Hebrews 10:17). If God doesn't bring up your past, why do you?
Lie #2: "I am what I do (Performance)."
This is the curse of the high-capacity leader. We think we are only as valuable as our last project, our last sermon, or our last paycheck. We believe that if we aren't "productive," we are worthless.
The Truth: Your value is inherent because you were created in the image of God and bought with the blood of Christ. You are not a "human doing"; you are a "human being."
Lie #3: "I am what others say about me (Approval)."
We live for the "Like" button. We let the opinions of people, who are just as broken as we are, dictate our sense of self-worth.
The Truth: The only opinion that matters is the one that comes from the Throne. If God says you are "fearfully and wonderfully made" (Psalm 139:14), then any contrary opinion is a lie.
Lie #4: "I am my feelings."
"I feel like a failure, so I must be one." "I don't feel close to God, so He must be far away."
The Truth: Feelings are indicators, not dictators. They tell you what’s going on in your soul, but they don't tell you the truth about your spirit. Faith is choosing to believe what God says even when your feelings are screaming the opposite.
4. Walking in Your Royal Identity
So, how do we practically live this out? How do we move from the "Identity Crisis" to "Identity Clarity"?
Renew Your Mind
Romans 12:2 tells us to be "transformed by the renewing of your mind." You have to wash your brain with the Word of God. This is why a consistent Christian leadership Bible study is non-negotiable. You need to spend more time listening to what God says about you than you do listening to your own internal monologue or the noise of the world.
Practice Affirmation
I encourage people to keep an "Identity in Christ" list in their Bible or on their phone. When the lies come, you hit back with the truth.
"I am a child of God." (John 1:12)
"I am Christ’s friend." (John 15:15)
"I have been justified." (Romans 5:1)
"I am a temple of the Holy Spirit." (1 Corinthians 6:19)
"I am a citizen of heaven." (Philippians 3:20)
Lead from the Middle
In the Kingdom, we don't lead from the top down; we lead from the middle of the family. Whether you are parenting with biblical truth or leading a ministry, your goal is to help others discover their identity in Christ. You can't do that if you are constantly seeking validation for your own. A leader who knows who they are is a leader who can truly serve.
5. The Eternal Perspective
Finally, we must remember that our identity has an "eternal shelf life." The things the world uses to define us, our looks, our wealth, our status, are all temporary. They are "old things" that are passing away.
But your identity as a child of God is eternal. It is "incorruptible and undefiled and does not fade away" (1 Peter 1:4). When you stand before the Father one day, He won't ask to see your resume. He won't check your LinkedIn profile. He will look at His Son, and because you are "in Christ," He will see His own beloved child.
This reality changes how we handle suffering. It changes how we handle success. It gives us a "Christian worldview" that is anchored in eternity rather than the shifting sands of culture. If you are looking for Christian worldview books that actually change the way you live, start with the New Testament’s teaching on the New Creation. It is the most radical, life-altering truth you will ever encounter.
Chapter 18: Study & Reflection Guide
This study guide is designed to help you process the deep truths of Chapter 18. Use it for personal reflection or with your small group.
I. Scripture Meditation
Read 2 Corinthians 5:14-21 and Ephesians 1:3-14 slowly.
What does it mean to you personally that "the old has passed away"? What specific "old things" are you still trying to carry?
List three spiritual blessings from the Ephesians passage that resonate with you today.
II. Discussion Questions
Why is it so easy to believe the lies of the enemy about our identity, even when we know the Bible says otherwise?
How does understanding your "Position in Christ" change the way you handle personal failure?
In your current role (parent, leader, friend), how would knowing your true identity change the way you interact with others this week?
What is one "identity lie" you’ve believed for a long time? What is the specific "identity truth" from Scripture that dismantles it?
III. Practical Application: The Mirror Exercise
This week, every time you look in the mirror, don't focus on your physical appearance or your list of to-dos. Say out loud: "I am a new creation in Christ. I am an adopted child of the King. I am loved, I am forgiven, and I am empowered." Watch how this small habit begins to shift your perspective.
IV. Prayer for Identity
Heavenly Father, thank You for the miracle of the new creation. Thank You that I am not defined by my past, my sins, or the opinions of others. Today, I receive my identity as Your child. Help me to walk in the authority and grace that comes from being 'in Christ.' Silence the lies of the enemy and let Your truth ring louder in my heart. Teach me to lead and love from a place of security in You. In Jesus’ name, Amen.
Author Bio: Layne McDonald, Ph.D.
Dr. Layne McDonald is the Founder and Director of Layne McDonald, a Christian ministry dedicated to creating high-quality books and resources that help readers understand Scripture and grow in faith. With a focus on biblical truth and Assemblies of God theology, Dr. McDonald’s work spans from Bible commentaries to cultural discernment, all designed to guide people toward Jesus Christ with wisdom and grace.
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