Lesson on church purity: expel wickedness?
What does "Expel the wicked man" teach about maintaining church purity?

Setting the Stage: Corinth’s Crisis and Paul’s Remedy

- The Corinthian church tolerated open, scandalous immorality (1 Corinthians 5:1).

- Rather than mourning, they were “inflated with pride” (v. 2), revealing a heart problem deeper than the sin itself.

- Paul responds with decisive, Spirit-inspired instruction aimed at preserving the holy character Christ intends for His body.


Reading the Key Verse

“God will judge those outside. Expel the wicked man from among you.” — 1 Corinthians 5:13


Core Principles for Maintaining Church Purity

• Purity is non-negotiable. God’s people are called to be holy because He is holy (1 Peter 1:16).

• Persistent, unrepentant sin spreads. “Do you not know that a little leaven leavens the whole batch of dough?” (1 Corinthians 5:6).

• Discipline begins with love for the offender’s soul. The goal is restoration, not humiliation (Galatians 6:1).

• Judgment inside the church is a family matter; God handles those outside (1 Corinthians 5:12-13).


Why Church Discipline Protects the Flock

- Shields weaker believers from stumbling.

- Guards the church’s public witness (Philippians 2:15).

- Affirms the seriousness of sin and the preciousness of Christ’s sacrifice.

- Demonstrates obedient submission to Christ, the Head of the church.


Biblical Steps Toward Restoration

1. Private confrontation (Matthew 18:15).

2. One or two witnesses join if repentance is refused (Matthew 18:16).

3. The matter is told to the church (Matthew 18:17a).

4. If hardness persists, separation occurs—“let him be to you as a pagan or a tax collector” (Matthew 18:17b), echoed in “expel the wicked man” (1 Corinthians 5:13).


Echoes Across Scripture

- Deuteronomy 17:7; 19:19; 21:21: “You must purge the evil from among you.”

- 2 Thessalonians 3:6: “Keep away from any brother who leads an undisciplined life.”

- Ephesians 5:11: “Have no fellowship with the fruitless deeds of darkness, but rather expose them.”

- Titus 3:10: “Reject a divisive man after a first and second admonition.”


Practical Takeaways for Today’s Church

• Cultivate a culture of humble accountability before sin takes root.

• Address sin swiftly, biblically, and with godly sorrow, not personal anger.

• Combine firmness with compassion, always leaving the door open for repentance.

• Pray expectantly for restoration; when repentance comes, warmly reaffirm love (2 Corinthians 2:6-8).

• Keep Christ’s holiness and the gospel’s reputation at the forefront of every disciplinary action.

How does 1 Corinthians 5:13 guide church discipline and accountability today?
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