Lesson 5 of 5 — Knowing Christ: A Study

One Body, One Hope, One Life in Christ

Purpose of this lesson: To see from Scripture how Christ forms one body, gives one hope, calls His people to love, unity, and humility, and keeps them faithful until the end — not as isolated individuals, but as a people belonging to Him together.

Christ forms one people with one hope, one life, and one calling to love, humility, holiness, and faithfulness.

What You Will Learn

What it means that all believers form one body in Christ
How Christ gives His people a shared, living hope
Why love, humility, and unity are marks of the body of Christ
What it means to remain faithful until the end
How the Christian life is a life of hope anchored in Christ's resurrection

Before You Begin You have reached the final lesson. As you read, remember that following Christ is not a solitary journey — you belong to a body. Ask God to help you see what it means to love, serve, and endure together in Him.

Key Scriptures

Ephesians 4:4–6
1 Corinthians 12:12–27
John 17:21
John 13:35
Revelation 2:10

Studying with someone? Read the Scriptures aloud together, move slowly, and leave room for honest questions. The goal is not to rush through material, but to see Christ clearly and respond to Him sincerely.

1. Christ Forms One Body

"There is one body and one Spirit."

Ephesians 4:4

The church belongs to Christ. It is not built on human pride, tribal identity, or religious competition. Christ is the Head, and His people are members of His body.

"He is also head of the body, the church."

Colossians 1:18

"You are Christ's body, and individually parts of it."

1 Corinthians 12:27

This means Christians are not called to live as disconnected individuals. We belong to Christ, and because we belong to Him, we also belong to one another.

"For by one Spirit we were all baptized into one body."

1 Corinthians 12:13

The body has many members, but one life. Not every member has the same gift, role, or function. But every member belongs to Christ and is called to serve in love.

"The eye cannot say to the hand, 'I have no need of you.'"

1 Corinthians 12:21

Main idea No believer should despise another member of Christ's body. No believer should treat the body of Christ as if it exists for personal importance. Christ forms one body where love, humility, service, truth, holiness, and mutual care should grow.

2. Christ Gives One Hope

"You were also called in one hope of your calling."

Ephesians 4:4

The Christian hope is not centered on earthly success, human status, or religious superiority. Our hope is in Christ.

He died. He rose. He reigns. He will come again.

"A living hope through the resurrection of Jesus Christ from the dead."

1 Peter 1:3

This hope is not vague optimism. It is rooted in the resurrection of Jesus. Because Christ lives, those who belong to Him will also live.

"Because I live, you also will live."

John 14:19

"Our citizenship is in heaven, from which we also eagerly wait for a Savior, the Lord Jesus Christ."

Philippians 3:20

Christians may come from different nations, languages, histories, and backgrounds, but they share one hope in Christ. This hope should make us humble. It should make us patient. It should make us holy. It should make us faithful.

"Everyone who has this hope set on Him purifies himself, just as He is pure."

1 John 3:3

Christian hope is not only about the future. It changes how we live now.

3. Christ Calls Us to Love, Unity, and Humility

Before His death, Jesus prayed for His disciples.

"That they may all be one."

John 17:21

The unity Jesus desires is not shallow agreement or human organization only. It is unity in the Father and the Son, unity in truth, unity in love, and unity produced by God's Spirit.

"By this all people will know that you are My disciples: if you have love for one another."

John 13:35

Love is not optional. It is the mark of Christ's disciples.

"Walk in a manner worthy of the calling with which you have been called."

Ephesians 4:1

"With all humility and gentleness, with patience, bearing with one another in love."

Ephesians 4:2

"Being diligent to keep the unity of the Spirit in the bond of peace."

Ephesians 4:3

Unity does not mean ignoring truth. And truth does not give us permission to become proud, harsh, or loveless. The way of Christ is truth with love, holiness with humility, conviction with gentleness, and faithfulness without arrogance.

"Speaking the truth in love, we are to grow up in all aspects into Him who is the head, that is, Christ."

Ephesians 4:15

Main idea The body of Christ grows by holding to Christ, speaking truth in love, and serving one another with humility.

4. Christ Calls Us to Remain Faithful Until the End

The Christian life is not only beginning well. It is remaining faithful to Christ.

"The one who endures to the end is the one who will be saved."

Matthew 24:13

"Be faithful until death, and I will give you the crown of life."

Revelation 2:10

This does not mean we depend on our own strength. Christ keeps His people. But He also calls us to remain awake, faithful, prayerful, and obedient.

"Remain in My love."

John 15:9

"Remain in Me."

John 15:4

The Christian life is a life of continuing in Christ.

We continue in faith. We continue in repentance. We continue in prayer. We continue in love. We continue in holiness. We continue in hope.

When we fall, we return to Him. When we are weak, we depend on His grace. When we are tempted, we seek His strength. When we suffer, we remember His cross. When we hope, we look to His resurrection and His coming Kingdom.

"It is no longer I who live, but Christ lives in me."

Galatians 2:20

This is the life Christ forms in His people. Not pride. Not division. Not empty religion. But one body, one hope, and one life in Him.

Key Truth

Christ forms one body.

He gives one hope.

He calls His people to love, unity, humility, holiness, endurance, and faithfulness.

The church belongs to Christ, and He is the Head.

Christians are not called to religious pride or division, but to life together in Him.

We must hold to truth with love, walk in humility, and remain faithful until the end.

"There is one body and one Spirit... one Lord, one faith, one baptism, one God and Father of all."
— Ephesians 4:4–6

"Remain in Me."
— John 15:4

Check Your Understanding

Multiple choice: According to 1 Corinthians 12:12–13, how do believers become one body?
- A. By agreeing on every doctrine
- B. By attending the same church building
- C. By being baptised in one Spirit into one body
- D. By having the same cultural background
Show suggested answer

C. 1 Corinthians 12:13 says "in one Spirit we were all baptised into one body — Jews or Greeks, slaves or free — and all were made to drink of one Spirit." The unity of the body is not based on human agreement or similarity but on the one Spirit who unites all who belong to Christ.
True or false: The hope Christians have is only about going to heaven after death — it has no meaning for how we live now.

Show suggested answer

False. Christian hope is a living hope (1 Peter 1:3) anchored in the resurrection of Christ. It shapes how we live now — with endurance in suffering (Romans 5:2–4), with generosity, with courage, and with love. The hope of resurrection and the renewal of all things motivates faithfulness in the present, not escape from it.
Scripture connection: In John 13:34–35, Jesus gives His disciples a new commandment: "Love one another as I have loved you." He adds that people will know His disciples by this love. Why is love the identifying mark of the body of Christ?

Show suggested answer

Because love is the nature of God Himself (1 John 4:8), and those united to Christ are being transformed to reflect His nature. This love — self-giving, sacrificial, like Christ's love — cannot be faked and cannot be produced by human willpower alone. When it is genuinely present among believers, it testifies to the world that Christ is real and His Spirit is at work.
In your own words: Hebrews 10:23–24 says to "hold fast the confession of our hope" and to "stir up one another to love and good works." Why does the writer connect holding onto hope with encouraging one another?

Show suggested answer

Hope is not only a personal, internal reality — it is sustained and strengthened in community. When we encourage one another, we remind each other of what is true: that Christ is faithful, that the resurrection is sure, and that our labour in Him is not in vain. We were not designed to hold onto hope alone. The body of Christ holds it together.
Personal response: Revelation 2:10 says "Be faithful unto death, and I will give you the crown of life." As you finish this study, what does it mean for you to remain faithful to Christ in your current circumstances?

Show suggested answer

There is no single correct answer. This final question invites you to move from study into life. Faithfulness looks different in different seasons — it may mean persevering in prayer, forgiving someone, continuing to trust when things are hard, or simply showing up to love those around you. Ask God what faithfulness looks like for you today.

Review

What does 1 Corinthians 12:12–13 say about the body of Christ?
According to Colossians 1:27, what is the hope Christ gives His people?
What does Jesus command His disciples in John 13:34–35?
How does Hebrews 10:23–24 call believers to respond to their hope in Christ?
What does Revelation 2:10 say to the one who remains faithful?

Reflection Questions

What does it mean that Christ forms one body?
Why should belonging to Christ make us humble toward other believers?
What is the one hope Christians share?
How can we hold to truth without becoming proud or harsh?
What does it mean to keep the unity of the Spirit in the bond of peace?
What helps a Christian remain faithful until the end?
How can my life better reflect one body, one hope, and one life in Christ?

After This Lesson

Read Ephesians 4:1–6 and pray for humility, love, and faithfulness in the body of Christ.

You Have Completed the Study

You have read through all five lessons — but the Christian life is not completed by reading pages. Continue in Christ. Remain in His word. Pray. Repent. Love. Forgive. Walk by the Spirit. Seek fellowship with sincere believers. Keep your hope fixed on Him.

This is the final lesson. But the life it describes has no ending.

Pause. Pray. Give thanks to God for Christ — His death, resurrection, and the life He gives. Ask Him to keep you in His body, faithful in His hope, walking in love, and remaining in Him until the end.

"Father, let me remain in Christ — in His body, His hope, and His life — to the end."

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