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While there are many books written about Christian discipleship, there are not nearly enough books on discipleship that primarily expound the Bible itself. The Apostle John wrote three letters, however, with the main purpose of helping disciples to grow.

That You May Know: A Primer on Christian Discipleship is an enriching study that will lead you through John’s teaching on following Jesus as a disciple.

This book is more than a commentary and more than a topical book on the subject of Christian discipleship. Instead, this is a primer on Christian discipleship written as a careful reading of God’s word in 1, 2 & 3 John. It’s ideal for your own individual devotional reading or as a helpful resource for your group Bible study.


Download That You May Know in PDF, Kindle, or ePub formats

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Bible Studies: The Letters of John

Discipleship according to John

Over the course of John’s Letters, he has worked through three primary themes: (1) Know God, (2) Believe the Gospel, and (3) Love one another. (Summary of 1, 2 and 3 John)

3 John: The Case Study of Gaius and Diotrephes

In 3 John, the Apostle John contrasts living for Christ versus living for self. Everyone is someone’s disciple; what kind of master do you serve? (Exposition of 3 John)

2 John: The Case Study of the Elect Lady

In 2 John, the apostle John gives us a case study of the themes of 1 John. Specifically, John shows how love and truth fit together in the Christian life. (Exposition of 2 John)

1 John 5:18–21: Eternal Life

In the closing section of his First Letter, the Apostle John insists that Jesus Christ is God and eternal life—and that we should therefore keep ourselves from idols. (Exposition of 1 John 5:18–21)

1 John 5:13–17: Prayer

Building on what he wrote about faith in the previous passage, the Apostle John now shifts his attention to prayer—especially prayer for the prodigal brother. (Exposition of 1 John 5:13–17)

1 John 5:1–12: Faith

What is faith? Where does faith come from? How do we get faith? What does faith do? Toward the end of his First Letter, the Apostle John answers these questions. (Exposition of 1 John 5:1–12)

Bible Studies: The Gospel of John

Access the complete set of Bible studies from the Gospel of John here.

John 21:1–25: The Shepherds of Jesus

In John 21:1–25, John closes his Gospel with a humbling reality: Jesus entrusts his flock to faltering shepherds. (Exposition of John 21:1–25)

John 20:19–31: The Commission of Jesus

Jesus is risen from the dead, but he will soon ascend to the Father. How, then, will the world come to believe in him? (Exposition of John 20:19–31)

John 20:1–18: The Resurrection of Jesus

After dying on the cross to finish his estate of humiliation, Jesus rises from the dead to begin his estate of exaltation. (Exposition of John 20:1–18)

John 19:28–42: The Death of Jesus

At his death, Jesus finishes his work in order to become the firstfruits of a new creation—he ends his estate of humiliation in order to begin his estate of exaltation. (Exposition of John 19:28–42)

John 19:16b–27: The Crucifixion of Jesus

To gain his heavenly kingdom, Jesus must give up every worldly good: worldly purity, worldly possessions, and worldly parent. (Exposition of John 19:16b–27)

John 19:1–16a: The Kingship of Jesus

Jesus’ royal power is not of this world. The kingdoms of this world rage against Jesus, but they cannot harm his kingship. (Exposition of John 19:1–16a)

Bible Studies: Paul's Letter to the Philippians

Studies from my forthcoming pastoral commentary on Paul’s Letter to the Philippians, Have This Mind: A Primer on the Cruciform Life.

Access the complete set of Bible studies from Philippians here.

Philippians 4:10–23: Generosity

Being conformed to the cruciform mind of Christ requires not only our lives, but even our wealth. (Exposition of Philippians 4:10–23)

Philippians 4:2–9: Peace

As those who have received peace with God through Christ, we should seek peace with others and with the world through prayer. (Exposition of Philippians 4:2–9)

Philippians 3:12–4:1: Perseverance

Christians have every reason to stand firm in perseverance in the midst of cruciform suffering: we have the hope of glory in Christ. (Exposition of Philippians 3:12–4:1)

Philippians 3:1–11: Righteousness

Sinful human beings cannot become righteous through keeping the law. We need the righteousness of Jesus Christ imputed to us by grace, through faith. (Exposition of Philippians 3:1–11)

Philippians 2:19–30: Servanthood

The soaring theology of the Christ hymn inspires more than our worship—it inspires our tedious, unnoticed, selfless servanthood. (Exposition of Philippians 2:19–30)

Philippians 2:12–18: Sanctification

God calls us to struggle and strive toward our sanctification, but he promises that he will be the One to accomplish the work. (Exposition of Philippians 2:12–18)

Bible Studies: The Book of Genesis

Access the complete set of Bible studies from Genesis here.

Genesis 34:1–31: The Passivity of Jacob

Leadership requires sacrificial responsibility. God will establish his kingdom without fail, whether by his appointed leaders or by zealous substitutes. (Exposition of Genesis 34:1–31)

Genesis 32:22–32: The Struggle of Israel

When God wrestles with us—and even when he cripples us—he does not seek our harm, but our lasting good. God wrestles with us to remake us. (Exposition of Genesis 32:22–32)

Genesis 32:1–21: The Sacrifice of Jacob

In the moment of Jacob’s greatest weakness, he comes most closely to resemble his most illustrious Descendant. God sustains our faltering faith when we are in the shadow of death. (Exposition of Genesis 32:1–21)

Genesis 31:22–55: The Dispute of Jacob

When it seems that Laban will defeat Jacob, God intervenes to stop Laban from harming Jacob. God conquers the enemies of his people at the darkest hour. (Exposition of Genesis 31:22–55)

Genesis 31:1–21: The Flight of Jacob

The flight of Jacob from Laban foreshadows God’s call to his church: God calls his church out of this world into his holiness. (Exposition of Genesis 31:1–21)