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Lesson 4: Sin in the Church (July 18-24)

Sabbath School · July 18–24, 2026 · 1 & 2 Corinthians, Lesson 4

Sin in the Church

“Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore honor God with your bodies.” — 1 Corinthians 6:19–20

Having addressed division, Paul turns to something even more startling: a case of sexual immorality inside the church so serious that “it is reported commonly…such fornication as is not so much as named among the Gentiles” (5:1). Worse than the sin itself, in Paul's eyes, was the church's response — pride, not grief.

This week moves from that single case outward into lawsuits between believers, sexual ethics, and marriage — three areas where the Corinthian church had absorbed its surrounding culture's standards rather than living as a people whose bodies belong to God (6:19–20).

Below, day by day, are some questions worth sitting with as you read this week's passages yourself — not official commentary, just prompts for reflection, each grounded in Scripture and drawn out into other parts of the Bible as well.

Sunday

Pride in the Wrong Thing

Paul confronts a man living with “his father's wife” (5:1) — a relationship forbidden even under Leviticus 18:7–8 — but his sharpest words are for the church's reaction: “ye are puffed up, and have not rather mourned” (5:2).

Why does Paul say this sin is worse than what even pagans practiced?

“Such fornication as is not so much as named among the Gentiles” (5:1) points out that Corinth's own famously permissive culture still recognized this particular relationship as beyond the pale. When a church's tolerance exceeds even the surrounding secular culture's standards, something has gone seriously wrong with its moral compass.

Why does Paul focus more on the church's pride than the individual's sin?

“Ye are puffed up, and have not rather mourned” (5:2) suggests the church had turned tolerance of this relationship into a point of pride, perhaps as evidence of their sophisticated grasp of Christian liberty. Paul treats a community's approval of sin as, in some ways, more alarming than the sin itself, since it signals a corrupted conscience rather than a single lapse.

How might the slogan “all things are lawful” (6:12) have contributed to this?

Paul quotes this phrase apparently used by some in Corinth to justify indulgence, then immediately qualifies it: “but all things are not expedient…I will not be brought under the power of any.” A true but incomplete slogan about Christian freedom, detached from any limiting principle, had apparently been stretched to excuse behavior no one should have accepted.

What does Leviticus 18:7–8 add to understanding why this particular case was so serious?

This relationship was explicitly named among the forbidden unions in the Mosaic law long before Paul's letter — not an ambiguous gray area needing careful pastoral nuance, but a clear violation the Corinthians should have recognized without needing Paul to spell it out for them.

Monday

Discipline That Restores

Paul instructs the church to “deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved” (5:5) — discipline aimed at restoration, not permanent rejection, likely borne out later in 2 Corinthians 2:5–10.

What does “deliver unto Satan” actually mean here?

In context, it most likely means removing the man from the protective fellowship of the church — putting him back outside the community where Satan's influence operates more freely — rather than a magical curse. The stated goal, “that the spirit may be saved in the day of the Lord Jesus” (5:5), makes clear this is corrective, not vindictive.

Why does Paul tell them not even to eat with someone like this (5:11)?

“With such an one no not to eat” (5:11) withdraws ordinary social fellowship as a way of making the seriousness of unrepentant sin unmistakable — not a permanent shunning, but a deliberate loss of comfortable normalcy meant to prompt reflection and repentance.

How does 2 Corinthians 2:5–10 suggest this discipline eventually worked?

Writing later, Paul urges the church to “forgive him, and comfort him, lest perhaps such a one should be swallowed up with overmuch sorrow” (2 Corinthians 2:7) — language that fits a disciplined person who had responded with genuine repentance, and now needed the church to complete the process with restoration rather than indefinite exclusion.

What does this two-part sequence teach about church discipline generally?

Discipline without any path back to restoration becomes just punishment; restoration without any real discipline first becomes indulgence. Paul's handling of this one case models both halves as necessary, in the right order — firm correction first, generous forgiveness once repentance is evident.

Tuesday

Taking Each Other to Court

Paul is astonished that believers were suing one another in secular courts: “dare any of you…go to law before the unjust, and not before the saints?” (6:1) — treating public litigation as a failure of the church's own internal life, not merely an unfortunate necessity.

Why does Paul find lawsuits between believers so troubling?

“Is it so, that there is not a wise man among you? no, not one, that shall be able to judge between his brethren?” (6:5) suggests the real scandal isn't that a dispute existed, but that the church had no internal capacity, or willingness, to resolve conflict among its own members without appealing to outside, unbelieving judges.

What alternative does Paul propose instead?

He suggests the church itself should be equipped to judge “the smallest matters” (6:2), reasoning that a community destined to “judge the world” and even “angels” (6:2–3) ought to be capable of settling ordinary disputes between its own members without outside help.

How does Romans 13:1–5 fit alongside this without contradicting it?

Romans 13 affirms civil government's legitimate authority generally, including for matters of justice and wrongdoing. Paul's concern in 1 Corinthians isn't that courts are illegitimate, but that believers were choosing public litigation against each other over private reconciliation within the church — a matter of priority and witness, not a rejection of civil authority altogether.

Why does Paul say “why do ye not rather take wrong?” (6:7)?

He suggests that absorbing a personal loss might sometimes be more in keeping with the gospel than winning a legal victory over a fellow believer — a hard word, not a universal rule against ever seeking justice, but a challenge to whether personal vindication was worth the damage done to the church's witness in the process.

Wednesday

A Temple, Not a Playground

Paul answers the idea that sexual freedom is as natural and inconsequential as appetite for food: “the body is not for fornication, but for the Lord…know ye not that your body is the temple of the Holy Ghost?” (6:13, 19).

What argument were some Corinthians apparently making about the body?

“Meats for the belly, and the belly for meats” (6:13) suggests an argument that sexual desire, like hunger, is simply a bodily appetite meant to be satisfied without moral weight attached. Paul flatly rejects the comparison: unlike food and digestion, “the body is not for fornication, but for the Lord; and the Lord for the body” (6:13).

Why does Paul call sexual immorality a sin “against his own body” (6:18) specifically?

“He that committeth fornication sinneth against his own body” distinguishes this sin from others Paul lists elsewhere, because it involves a union — “he which is joined to an harlot is one body” (6:16) — that directly implicates the body itself in a way other sins don't. The body isn't incidental to the wrongdoing; it's the very site of it.

What does “bought with a price” (6:20) add to this whole argument?

“Ye are not your own…ye are bought with a price” grounds the entire ethic in ownership, not merely rule-keeping — the body belongs to Someone else because of what that redemption cost. “Glorify God…in your body” (6:20) follows naturally once ownership, not personal preference, is the basis for how the body is used.

How does Romans 12:1 extend this same logic?

“Present your bodies a living sacrifice, holy, acceptable unto God” (Romans 12:1) treats the body as an offering, not a possession to be used however one wishes — a positive counterpart to 1 Corinthians 6's warning, describing what the body is for rather than only what it isn't for.

Thursday

Fleeing Like Joseph

Paul's counsel is blunt — “flee fornication” (6:18) — and Genesis 39 supplies the Bible's clearest picture of what that actually looks like: Joseph literally running from Potiphar's wife rather than negotiating with the temptation.

Why “flee” rather than “resist” or “reason with”?

The word choice matters: Paul doesn't counsel careful argument or gradual willpower against this particular temptation, only distance, taken immediately. Some temptations are better outrun than debated, because prolonged exposure itself erodes the resolve needed to resist.

How does Joseph's story in Genesis 39:6–18 model this exact response?

Repeatedly propositioned by Potiphar's wife, Joseph doesn't linger to explain his reasoning — when she seizes his garment, “he left his garment in her hand, and fled, and got him out” (39:12), accepting the immediate cost of a false accusation rather than remaining in the room a moment longer than necessary.

What did fleeing cost Joseph, and what did God do with that cost?

He was falsely accused and imprisoned (39:18–20) for doing the right thing — yet Genesis 41:38, 45 shows God later elevating him to remarkable authority in Egypt. Faithfulness in that moment of temptation didn't spare him immediate consequences, but it wasn't wasted in the larger story God was writing.

How does this connect to what marriage is for, according to 1 Corinthians 7 and Hebrews 13:4?

“Marriage is honourable in all, and the bed undefiled” (Hebrews 13:4) affirms that the very desire Joseph fled from isn't itself shameful — it has a proper place. 1 Corinthians 7's counsel about marriage isn't a grudging concession, but a recognition that God-given desire is meant to be channeled, not simply suppressed indefinitely.

Friday

A Little Leaven

“Know ye not that a little leaven leaveneth the whole lump?” (5:6) — Paul's warning that tolerated sin, however contained it may seem, tends to spread through an entire community if left unaddressed.

What is the point of the leaven metaphor specifically?

Leaven works invisibly and gradually through dough until the whole batch is affected — Paul's point is that the church's tolerance of one visible sin (5:1–2) wasn't a contained, isolated issue, but something that would inevitably shape the whole community's standards if left unchallenged.

How does Exodus 32:1–6 connect idolatry and sexual immorality the way this week's readings have repeatedly done?

At the golden calf, Israel didn't just worship an image — they “rose up to play” (32:6), a phrase widely understood to include sexual revelry. Scripture consistently pairs these two categories of sin because they share a common root: replacing devotion to God with the gratification of self.

Why does Paul return to marriage's origin in Genesis 1–2 as this week's readings close?

“Male and female created he them…a man shall leave his father and his mother, and shall cleave unto his wife” (Genesis 1:27–28; 2:24) reminds readers that marriage isn't a human institution being regulated, but a creation ordinance being honored — the standard Paul defends throughout this section didn't originate with him.

What does treating marriage as “honourable in all” (Hebrews 13:4) argue against?

Against two opposite errors this week's readings have touched on: treating the body's desires as morally weightless (6:13), and treating marriage itself as a lesser, outdated, or restrictive institution — both miss that marriage, rightly honored, is precisely where those desires find their intended, God-given place.

Sabbath

For Discussion

Why is a church's pride in tolerating sin more dangerous than the sin itself?

Because it signals a corrupted collective conscience rather than an isolated failure — when a community stops being able to recognize wrongdoing as wrong, correction becomes far harder to achieve.

What does restorative discipline, done well, actually look like in practice?

Firm enough to make the seriousness of sin unmistakable (5:5, 11), yet aimed clearly at repentance and eventual full restoration (2 Corinthians 2:7–8) — neither indulgent nor permanently punitive.

How does viewing the body as “bought with a price” change how we think about physical desires generally?

It reframes questions of bodily conduct as questions of stewardship and ownership rather than personal autonomy — not “what am I free to do,” but “what honors the One this body actually belongs to.”

What would “fleeing” rather than negotiating with a specific temptation look like for you this week?

Following Joseph's example, this invites concrete, practical honesty about a particular situation, relationship, or habit that might be better ended abruptly than managed carefully.

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