Link 1 Cor 5:13 & Matt 18:15-17 on discipline.
How does 1 Corinthians 5:13 connect with Matthew 18:15-17 on church discipline?

The Core Texts

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

Matthew 18:15-17

• “If your brother sins against you, go and confront him privately. If he listens to you, you have won your brother over.

• But if he will not listen, take one or two others along so that ‘every matter may be established by the testimony of two or three witnesses.’

• If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, regard him as you would a pagan or a tax collector.”


Shared Foundation: Purity in God’s People

• Both passages are anchored in the Old Testament command, “you must purge the evil from among you” (Deuteronomy 13:5; 17:7; 19:19).

• The church inherits Israel’s calling to reflect God’s holiness (1 Peter 1:15-16).

• Sin left unchecked defiles the whole body (1 Corinthians 5:6; Galatians 5:9).


Jesus Gives the Process (Matthew 18)

• Step 1 — Private confrontation: loving, discreet, aiming at repentance.

• Step 2 — Small-group confirmation: two or three witnesses ensure fairness and clarity.

• Step 3 — Congregational appeal: the whole church pleads for repentance.

• Final outcome — If repentance is refused, the unrepentant is treated “as a pagan or a tax collector,” meaning removal from fellowship.


Paul Applies the Final Step (1 Corinthians 5)

• The sin was public, flagrant, and unrepented (sexual immorality “not even among the pagans,” v. 1).

• Paul, absent in body yet present in spirit (v. 3-4), directs the church to implement Jesus’ final step immediately.

• “Expel the wicked man” echoes Matthew 18:17’s “regard him as a pagan.”

• Paul’s words assume the earlier steps have failed or are unnecessary because the scandal is already open and notorious.


Why the Swift Action?

• Protect the flock: “A little leaven leavens the whole batch” (1 Corinthians 5:6).

• Rescue the sinner: “Hand this man over to Satan for the destruction of the flesh, so that his spirit may be saved” (v. 5).

• Honor Christ’s sacrifice: “Christ, our Passover lamb, has been sacrificed. Therefore let us keep the feast… with the unleavened bread of sincerity and truth” (v. 7-8).

• Maintain witness to outsiders: “What business of mine is it to judge outsiders? Are you not to judge those inside?” (v. 12).


Key Parallels

• Same authority source: Jesus’ instruction undergirds Paul’s command.

• Same goal: restoration and holiness, not punishment for its own sake.

• Same boundary: judgment begins “inside” the covenant people; God judges those outside.


Complementary Passages

Galatians 6:1 — Restore the one caught in sin “in a spirit of gentleness,” mirroring Matthew 18’s private appeal.

2 Thessalonians 3:6,14-15 — “Keep away from every brother who leads an unruly life… yet do not regard him as an enemy, but admonish him as a brother.”

Titus 3:10-11 — “Reject a divisive person after a first and second admonition.”

1 Timothy 5:20 — Public rebuke “so that the rest will stand in fear.”


Putting It Together

Matthew 18 supplies the orderly, incremental discipline framework.

1 Corinthians 5 shows the last stage enacted when earlier efforts have failed or public scandal demands immediate corporate action.

• Both affirm:

– Holiness is non-negotiable.

– Discipline is an expression of love (Hebrews 12:6-11).

– Restoration is always the desired end.


Practical Takeaways for Today

• Follow Jesus’ steps exactly: private first, then small group, then church.

• Move to public action only when the sin is public, persistent, and unrepentant.

• Keep motives pure: seek the sinner’s salvation and the church’s purity simultaneously.

• Rely on Scripture’s authority, not personal preference, as you navigate each step.

How can we apply 1 Corinthians 5:13 to personal spiritual growth?
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