Preach The Word with David Ryu

Sermon by Rev. David Ryu, on Sunday, June 28, 2026, at Diaspora Church. The sermon text comes from Mark 3:7-19. Our Lord establishes a model for Christian ministry by appointing the Twelve Apostles to share in His work. Here, Christ teaches us the godly principle of delegation and cooperation. God never intended His kingdom to advance through the labors of one man. Christian ministry is not a one-...

Sermon by Rev. David Ryu, on Sunday, June 21, 2026, at Diaspora Church. The sermon text comes from Mark 2:23-3:6. We see yet another conflict between Jesus and the religious leaders. The point of contention here concerns the Sabbath. What is its purpose? And what is lawful on the Sabbath? The Pharisees saw Jesus as a breaker of the Sabbath, but they failed to see that He is the Author of the Sabba...

Sermon by Rev. David Ryu, on Sunday, June 7, 2026, at Diaspora Church. The sermon text comes from Numbers 6: 22-27. We turn our attention to the greatest pronouncement of divine blessing in Scripture, commonly known as the Priestly Blessing or Aaronic Benediction. We must not underestimate the significance of this benediction in the life and history of the Church. For thousands of years, these ver...

Sermon by Rev. David Ryu, on Sunday, May 31, 2026, at Diaspora Church. The sermon text comes from Mark 2:18-22. Jesus and His disciples were criticized for not fasting according to the religious customs of the day. However, beneath this controversy lies a deeper warning about the danger of religious piety without true understanding, judging spirituality by outward practices, elevating human tradit...

Sermon by Rev. David Ryu, on Sunday, May 17, 2026, at Diaspora Church. The sermon text comes from John 1:12-13. For the Christian, the highest privilege is the right to call God your Father. It is this glorious truth that makes Christianity all the more exceptional and stand out among all other religions of the world. God chose to redeem hell-bound sinners and set us apart as His own precious chil...

Sermon by Rev. David Ryu, on Sunday, May 10, 2026, at Diaspora Church. The sermon text comes from Mark 2:13-17. We see yet another conflict between Jesus and the religious leaders as He reclines at table with tax collectors and sinners. But no matter how corrupt your life, no matter how shameful your past, you are not beyond the reach of God’s grace. Christ, the Great Physician, came to call not t...

Sermon by Rev. David Ryu, on Sunday, April 26, 2026, at Diaspora Church. The sermon text comes from Mark 2:1-12. This famous account of Jesus healing the paralytic man is rich with theological gems. But it also reveals our greatest problem. It's not mental health, sickness, financial hardship, stress, singleness, or any other earthly troubles. Your greatest problem is your sin, and your only hope...

Sermon by Rev. David Ryu, on Sunday, April 19, 2026, at Diaspora Church. The sermon text comes from Mark 1:35-45. Every Christian is called to ministry—a life devoted to serving Christ, loving people, and advancing the gospel. But both our passion and practice of ministry, no matter how sincere and well-intended, must be carefully guided if we want to be useful in the service of Christ. In this pa...

Sermon by Rev. David Ryu, on Easter Sunday, April 5, 2026, at Diaspora Church. The sermon text comes from John 20:24-31. Most people remember him as "Doubting Thomas". But John includes this unique account of a doubting disciple in his Gospel to persuade you to believe! Christianity is not a blind faith, in the sense that it requires you abandon all reason and logic. Thomas is not rejected and tur...

Sermon by Rev. David Ryu, on Good Friday April 3, 2026, at Diaspora Church. The sermon text comes from Galatians 3:13-14. The cross is worn by many, but understood by few. Whether you hate the cross or love the cross, ignorance abounds. Do you have a true understanding of the cross of Jesus Christ? And if you do, does your heart still burn within you at the preaching of the cross? Because though i...

Sermon by Rev. David Ryu, on Sunday March 22, 2026, at Diaspora Church. The sermon text comes from Mark 1:21-34. In this passage, the supreme authority of Christ is put on display. Jesus is the sovereign Lord over demons and disease, over the spiritual and physical. To the world that is perishing, there is only one hope, and one Savior—Jesus Christ, the Son of God, come in the flesh! Let us worshi...

Sermon by Pastor David Ryu, on Sunday March 15, 2026, at Diaspora Church. The sermon text comes from Mark 1:16-20. In this famous account of Jesus calling His first disciples, Mark directs our focus to the central matter: Jesus' call to discipleship and what that call demands. The first disciples were lowly fishermen and unimpressive in the eyes of the world. God chose foolish things of the world...

Sermon by Pastor David Ryu, on Sunday March 1, 2026, at Diaspora Church. The sermon text comes from Mark 1:9-15. The purpose for which Christ has come was to redeem His people, but He executes that work of redemption as Prophet, Priest, and King. In the Baptism of Jesus, the Temptation of Jesus, and the Preaching of Jesus, we will clearly see that Jesus Christ is the ultimate Prophet, Priest and K...

Sermon by Pastor David Ryu, on Sunday February 22, 2026, at Diaspora Church. The sermon text comes from Mark 1:1-8. We begin a new sermon series through the Gospel of Mark. Drawing upon reliable sources, and carried along by the Holy Spirit, Mark's record of the earthly life and ministry of Jesus is true and worthy of our full confidence. Jesus is the Christ, the Son of God, and the Lord God of Is...

Sermon by Pastor David Ryu, on Sunday February 8, 2026, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:25-28. Readers may be tempted to rush through these closing words of Paul's letter, assuming that nothing important remains to be said. But this final section contains valuable insights and applications for every believer. In these final four verses of 1 Thessalonians, what we s...

Sermon by Pastor David Ryu on Sunday January 81, 2026 at Diaspora Church. The sermon text comes from 1 Thessalonians 5:23-24. The slowness of our sanctification or the lack of progress in holiness, is one of the most painful disappointments that Christians can face. But Paul reminds us that God Himself is the source of their sanctification and He will not stop His work until there is no more corru...

Sermon by Pastor David Ryu on Sunday January 11, 2026 at Diaspora Church. The sermon text comes from 1 Thessalonians 5:19-22. While every believer is indwelt by the Spirit of God, we can still resist the Holy Spirit's work and influence in our lives. Paul commands believers not to quench the Spirit, and put out the fire within us. How, then, can we be faithful disciples of Jesus Christ in a wicked...

Sermon by Pastor David Ryu on Christmas Day, December 25, 2025 at Diaspora Church. The sermon text comes from Matthew 1:18-21. One might expect that the arrival of the King of Kings, and the Lord of Lords, would be accompanied by a display of great strength that draws worldwide attention! Yet, He came as helpless little babe, born into poverty, disgrace, and shame. In order to bring His people out...

Sermon by Pastor David Ryu, on Sunday December 21, 2025, at Diaspora Church. The sermon text comes from 1 Timothy 1:12-16. You will never truly know a Merry Christmas unless you are gripped by the sinfulness of your sins, and even more so, gripped by the One who came to redeem the most vile of sinners. The Apostle Paul tells us that Christ Jesus came into the world to save sinners—including himsel...

Sermon by Pastor David Ryu, on Sunday December 7, 2025, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:16-18. The pursuit of happiness is the pursuit of every human soul. But we are discontent, we are empty, we are bored, because we were made for greatness, which this fallen world cannot provide. The Word of God teaches that believers are called and saved unto a life of abounding...

Sermon by Pastor David Ryu, on Sunday November 30, 2025, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:14-15.

Sermon by Pastor David Ryu, on Sunday November 16, 2025, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:12-13. In these two verses, the Apostle Paul is specifically concerned with the relationship between the church's members and the leaders entrusted with their care. The relationship between the flock and pastors can be complex and complicated, especially in today's context with...

Sermon by Pastor David Ryu, on Sunday November 9, 2025, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:9-11. For some believers, the lack of assurance of salvation may be a constant struggle throughout their lives. Even Charles Spurgeon, who was the brightest preacher of the gospel in his day, at times struggled with assurance of his own salvation. However, the Bible plainly teac...

Sermon by Pastor David Ryu, on Reformation Sunday October 26, 2025, at Diaspora Church. The sermon text comes from Leviticus 10:1-2. If Martin Luther was the spark for the Protestant Reformation, then John Calvin was the raging flame that made it an unstoppable fire. What did Calvin believe was the most necessary aspect of the Reformation, the highest purpose of the Reformation? It was not institu...

Sermon by Pastor David Ryu, on Sunday October 19, 2025, at Diaspora Church. The sermon text comes from 1 Thessalonians 5:1-8. While some people have an unhealthy obsession with the timing of the second coming to Christ, there are others who are indifferent to the Lord's return, dismissing it altogether or treating it as some event in the far distant future. As the day of the Lord approaches, let u...