In 2 Corinthians 12:20, Paul lists relational sins he fears — here he adds sexual sins, completing his concerns.

In 2 Corinthians 12:7, Paul's thorn was given to keep him humble; here he fears being humbled by God over unrepented sin.

In 2 Corinthians 2:1-4, Paul recalls his painful visit and tearful letter, directly echoing the sorrow he fears here over unrepentant sin.

2 Corinthians 7:9-11 describes their previous repentance that brought joy — now Paul fears they have not repented, reversing that hope.

In 2 Corinthians 13:2, Paul warns he will not spare if they haven't repented — the same unrepentant sin he fears mourning over here.

In 2 Corinthians 2:3, Paul wrote to avoid pain on his visit — here that same painful confrontation is looming.

In 2 Corinthians 7:10, Paul defines godly grief that leads to repentance — the repentance he fears they have not experienced here.

In 2 Corinthians 11:3, Paul fears their pure devotion being corrupted — the same concern for their purity underlies his mourning here.

In 2 Corinthians 13:10, Paul says he writes to avoid being severe — his fear here of mourning is his motivation to warn them.

2 Corinthians 2:5-11 deals with forgiving a repentant offender — here Paul fears many remain unrepentant, showing different stages of discipline.

Ephesians 5:5 warns that the sexually immoral and impure have no inheritance — reinforcing the seriousness of the unrepentant sin Paul mourns.

Galatians 5:19 lists the same three sins — sexual immorality, impurity, sensuality — as works of the flesh to be avoided.

In Revelation 22:15, the sexually immoral are excluded from the holy city, adding finality to the judgment Paul implies for unrepentant sin.

Ephesians 5:6 warns of God's wrath for such sins — directly connecting to Paul's concern about unrepentant immorality bringing divine judgment.

In Philippians 3:18, Paul weeps over enemies of the cross — same tearful sorrow over unrepentant sin as he fears here.

Colossians 3:5 commands putting to death sexual immorality and impurity — the very sins Paul mourns as lingering in Corinth.

In 1 Thessalonians 4:3-7, Paul calls for sanctification and abstaining from sexual immorality, reinforcing the same divine standard Paul fears they've unrepentantly violated.

In Hebrews 13:4, marriage is honored while fornicators and adulterers face God's judgment, adding a clear divine penalty to the sins Paul mourns.

In 1 Peter 4:3, lewdness and lusts are listed as past Gentile behaviors, showing the same sins Paul grieves should be left behind.

In 2 Peter 2:10-14, false teachers indulge in sexual sin and greed, illustrating the kind of unrepentant sinners Paul fears will be among his flock.

In 2 Peter 2:18, false teachers allure people through lustful passions, showing how sexual sin spreads—a danger behind Paul's concern.

In Jude 1:7, Sodom and Gomorrah serve as an example of divine judgment for sexual immorality, adding a historic warning to Paul's grief.

In Revelation 21:8, the sexually immoral are among those destined for the lake of fire, reinforcing the eternal consequence of the sins Paul fears remain unrepented.

In 1 Corinthians 6:9-11, Paul lists the same sins and reminds them they were washed — highlighting the tragedy if they've returned to old ways.

Psalm 119:136 describes tears over people not keeping God's law — an exact parallel to Paul's sorrow over unrepentant impurity.

In Ezra 10:1, Ezra weeps and prays in confession over sin — directly matching Paul's fear of having to mourn over unrepentant sinners.

In Jeremiah 9:1, the prophet yearns to weep over his people's sin — a close parallel to Paul's fear of mourning over unrepentant Corinthians.

In Ezra 9:3, Ezra tears his garment and is appalled by the people's sin — a strong parallel to Paul's anticipated mourning.

1 Corinthians 6:15-18 argues that sexual immorality is uniquely sinful against the body — directly addressing the sin Paul mourns here.

In 1 Samuel 15:35, Samuel grieves over Saul — a prophet mourning over a king's sin, directly paralleling Paul's grief.

In Romans 9:2, Paul feels sorrow and anguish for Israel — the same grief he fears for unrepentant Corinthians here.

1 Corinthians 5:1 reports the specific case of incestuous immorality in Corinth — the very sin Paul fears remains unrepented.

1 Corinthians 5:9-11 shows Paul's earlier instruction to separate from sexually immoral believers — same issue he now fears persists.

Acts 15:20 commands Gentiles to abstain from sexual immorality—the very sin Paul mourns in 2 Cor 12:21 that they have not repented from.

Revelation 9:21 directly lists sexual immorality among sins people did not repent of, exactly matching Paul's concern.

Ezekiel 9:4 marks those who grieve over detestable sins—this righteous grief is exactly what Paul expresses in 2 Cor 12:21 over unrepentant sinners.

In 1 Corinthians 5:2, Paul commanded them to mourn over a sinner — here he fears he himself will have to mourn over their unrepentance.

In 1 Corinthians 5:11, Paul explicitly commanded separation from sexually immoral brothers — the very sin they haven't repented of here.

Psalm 119:59 shows what repentance looks like: considering one's ways and turning to God's statutes—contrasting with those in 2 Cor 12:21 who have not repented.

Revelation 2:22 threatens judgment on adulterers unless they repent, paralleling Paul's mourning over unrepentant sexual sin.

Jeremiah 13:27 laments Jerusalem's persistent sexual immorality and impurity—echoing God's sorrow over sin that Paul reflects in 2 Cor 12:21.

In Jeremiah 13:17, the prophet weeps over unrepentant pride — the same grieving heart Paul fears for Corinthians who have not repented.

Proverbs 7:26 warns that sexual sin destroys many victims—highlighting the deadly consequences underlying Paul's grief in 2 Cor 12:21.

Hebrews 12:16 warns against sexual immorality using Esau as an example, echoing the same sin Paul fears has gone unrepented.

Ezekiel 18:24 warns that turning from righteousness to sin leads to death—underscoring the danger of the unrepentant state Paul mourns in 2 Cor 12:21.

Ephesians 5:3 commands believers to avoid even naming sexual immorality and impurity, reinforcing Paul's concern over unrepentant sin.

In Galatians 4:11, Paul fears his labor may be in vain — the same fear that his work among the Corinthians might be fruitless here.

In Exodus 32:31, Moses confesses Israel's great sin — a leader grieving over sin, similar to Paul's anticipated mourning.