Matthew 5:27-30 | Going to War Against Lust | Pastor Andy Waldroup

Jesus calls His followers to something deeper than outward obedience. Matthew 5:27 through 30 shows that God does not merely forbid the act of adultery. Jesus looks at the heart, because adultery starts long before the outward act. Lustful desire reveals a heart that is seeking fulfillment outside of God’s design.

God created marriage to show something about Himself. Marriage pictures the faithful love of Christ for His church, and faithfulness in marriage matters because God is faithful to His people. Satan attacks marriages because he hates Jesus and hates anything that rightly reflects the gospel. Lust makes people shortsighted, pulling attention toward what feels good right now while hiding what it will do to souls, families, marriages, and the name of God.

Jesus exposes the weakness of merely external righteousness. The Pharisees could agree that adultery was wrong while missing the sinful desires that were already at work in the heart. Lust is not just a look. Lust is a longing that says God’s way is not enough and that something else will satisfy better. The eyes and the heart are connected, because what a person looks at with lustful intent reveals something that needs to be dealt with inside.

God sees every kind of sin as a pointer to a deeper need. Lust, greed, pride, and anger all reveal broken hearts that need a Savior. Christ receives those who stop hiding, admit their sin, and cry out for a new heart. Jesus does not call sinful people to clean themselves up before coming to Him. Jesus calls needy, weak, broken people to come to Him for forgiveness, healing, and change.

Jesus uses radical language about tearing out an eye and cutting off a hand because sin is deadly serious. The point is not bodily mutilation, but a willingness to do whatever it takes to fight what causes sin. Sin hides in little excuses: “It was just a look,” “just a click,” or “nobody knows.” Lust wages war against the soul, and complacency toward sin gives it room to kill.

Jesus calls His people to flee temptation, refuse isolation, and pursue Him. Temptation may require radical changes to routines, screens, relationships, devices, and access. The church becomes a grace from God when believers confess sin, pray for one another, and help restore one another in truth and love. Christ remains the true defense against lust because His beauty, grace, and promises are better than the empty promises of sin. The fight is lifelong, but Jesus keeps changing hearts, and a day is coming when the struggle will finally be over.

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Key Takeaways

• 1. Lust starts in the heart Jesus does not allow sin to be reduced to outward actions alone. Lust reveals desires that are looking for life, comfort, attention, or satisfaction apart from God’s design. God looks beneath behavior because only a new heart can produce lasting change. [50:30]
• 2. Marriage displays God’s faithful love Marriage belongs to God before it belongs to any husband or wife. Faithfulness in marriage portrays Christ’s faithful, sacrificial love for His bride, the church. Satan’s attacks on marriage are never merely private, because they seek to distort a picture of the gospel. [46:24]
• 3. Sin requires radical resistance Jesus uses shocking images because sin is not harmless or manageable. Small compromises can become places where desire grows stronger and the soul grows duller. Radical obedience may feel inconvenient, but no convenience is worth the destruction sin brings. [58:08]
• 4. Isolation feeds hidden sin Lust thrives in darkness, secrecy, and self-reliance. God gives the church so that believers can confess sin, receive prayer, and be restored through truth and love. Holiness is not a private project, because every person has blind spots and weaknesses. [65:23]
• 5. Christ remains the place of hope Jesus does not turn away those who come to Him ashamed and needy. Christ is the righteous Advocate and the atoning sacrifice for sinners who repent and believe. His grace does not make sin small, but it gives real help for the long fight toward a changed heart.
  
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Youtube Chapters

• [00:00] - Welcome
• [38:54] - Matthew 5 and the Seriousness of Lust
• [39:31] - A Deadly Plague of Lustful Desire
• [42:13] - Heart Righteousness in the Sermon on the Mount
• [44:17] - Why Adultery Matters to God
• [46:00] - Marriage as a Picture of the Gospel
• [49:07] - Jesus Looks Beneath External Obedience
• [50:30] - The Connection Between Eyes and Heart
• [55:53] - Do Whatever It Takes to Fight Sin
• [62:12] - Flee Temptation
• [65:06] - Do Not Fight Sin Alone
• [67:34] - Renew Your Affection for the Gospel
• [69:14] - Jesus Is the Advocate for Sinners
• [73:07] - The Lifelong Pursuit of Holiness
• [75:37] - Prayer for New Hearts and Strength

Bible Reading

Matthew 5:27-30
“You have heard that it was said, 'You shall not commit adultery.' But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart. If your right eye causes you to sin, tear it out and throw it away. For it is better that you lose one of your members than that your whole body be thrown into hell. And if your right hand causes you to sin, cut it off and throw it away. For it is better that you lose one of your members than that your whole body go into hell.” [39:00]

1 John 2:1-2
“My little children, I am writing these things to you so that you may not sin. But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous. He is the propitiation for our sins, and not for ours only but also for the sins of the whole world.” [01:09:56]

James 5:16
“Therefore, confess your sins to one another and pray for one another, that you may be healed. The prayer of a righteous person has great power as it is working.” [01:07:01]

Observation questions

1. In Matthew 5:27–30, what contrast does Jesus make between the outward act of adultery and what happens in the heart? [50:30]
2. What body parts does Jesus mention as possible causes of sin, and what repeated outcome does He warn about?
3. What reasons are given for why marriage matters to God beyond the happiness of a husband and wife? [46:24]
4. According to James 5:16, what two actions are connected with healing? [01:07:01]

Interpretation questions

1. Why does Jesus address lustful intent, rather than limiting God’s command to physical adultery? What does this show about the kind of righteousness God desires? [49:33]
2. Jesus uses extreme language about removing an eye or hand. Why is this better understood as a call for radical resistance to sin rather than bodily harm? [57:43]
3. How does lust promise satisfaction while hiding its possible effects on a person’s soul, family, marriage, and witness for Christ? [48:44]
4. In 1 John 2:1–2, how can Jesus be both the One who calls His people away from sin and the Advocate for those who repent after they sin? [01:09:53]

Application questions

1. Where are the “small” compromises that can make temptation feel harmless—perhaps a screen, social-media habit, private conversation, entertainment choice, or fantasy? What would it look like to take that area seriously before it grows? [58:00]
2. What situations, places, times of day, or routines tend to make temptation stronger? Is there one practical boundary that could help make temptation weaker this week? [01:02:27]
3. Lust often seeks comfort, attention, affirmation, or satisfaction apart from God’s design. When these desires become strong, what need might they be revealing in the heart? [50:51]
4. Is there a trusted, mature believer who knows the real struggles and weaknesses in your life? If not, what makes honest confession difficult, and what would be a wise next step toward Christian support? [01:06:43]
5. For those who are married, how can faithfulness, sacrifice, and care in marriage more clearly reflect Christ’s faithful love for His church? For those who are single, how can purity and faithfulness to Christ display that same gospel hope? [47:54]
6. Shame often tells people to hide from God after sin. When guilt or temptation comes, what would it look like to go quickly to Jesus as the righteous Advocate instead of withdrawing from Him? [01:10:11]