1 Corinthians 5:9
in 1 Corinthians 5I wrote you in my letter not to associate with sexually immoral people.
BSB
The same verse in ASV and KJV ▾
ASV
I wrote unto you in my epistle to have no company with fornicators;
KJV
I wrote unto you in an epistle not to company with fornicators:
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This verse in 1 Corinthians 5
Commentary
14 notes on this verseA commentator
Albert Barnes1798–1870
Notes, Explanatory and Practical, on the Old and New Testaments (1832-1869)
I wrote unto you - I have written ἔγραψα egrapsa. This word may either refer to this Epistle, or to some former epistle. It simply denotes that he had written to them, but whether in the former part of this, or in some former epistle which is now lost, cannot be determined by the use of this word. In an epistle - ἐν τῇ ἐπιστολῇ en tē epistolē. There has been considerable diversity of opinion in regard to this expression.
This site's exposition
I wrote you in my letter
on 1 Corinthians 5:9-10
Paul refers to an earlier letter that is not preserved, I wrote you in my letter not to associate with sexually immoral people, which the church read as a call to leave society. Verse 10 corrects the reading: I was not including the sexually immoral of this world, In that case you would have to leave this world. Contact with the world's sin cannot be avoided, while tolerating it inside the church can.
The record, by era
The Church Fathers4 voices
Paul tells us here that he has already written to the Corinthians once. Because they failed to take action then, he is now writing a second time.
But now I write to you, if any is named a brother among you, (being) a fornicator, or an idolater" (for what so intimately joined?), "or a defrauder" (for what so near akin?), and so on, "with such to take no food even," not to say the Eucharist: because, to wit, withal "a little leaven spoileth the flavour of the whole lump.
A commentator
Theodoret of CyrusCOMMENTARY ON THE FIRST EPISTLE TO THE CORINTHIANS 193 · Written before 458.
proposed
Paul is not referring to another letter but to this one, for he has just said that a little leaven leavens the whole lump.
For since he had said, "Ye have not rather mourned, that such an one should be taken away;" and, "Purge out the old leaven;" and it was likely that they would surmise it to be their duty to avoid all fornicators: for if he that has sinned imparts some of his own mischief to those who have not sinned, much more is it meet to keep one's self away from those without: (for if one ought not to spare a friend on account of such mischief arising from him, much less any others;) and under this impression, it was probable that they would separate themselves from the fornicators among the Greeks also, and the matter thus turning out impossible, they would have taken it more to heart: he used this mode of correction, saying, "I wrote unto you to have no company with fornicators, yet not altogether with the fornicators of this world:" using the word "altogether," as if it were an acknowledged thing. For that they might not think that he charged not this upon them as being rather imperfect, and should attempt to do it under the erroneous impression that they were perfect, he shews that this were even impossible to be done, though they wished it ever so much. For it would be necessary to seek another world. Wherefore he added, "For ye must needs then go out of the world." Seest thou that he is no hard master, and that in his legislation he constantly regards not only what may be done, but also what may be easily done. For how is it possible, says he, for a man having care of a house and children, and engaged in the affairs of the city, or who is an artisan or a soldier, (the greater part of mankind being Greeks,) to avoid the unclean who are to be found every where? For by "the fornicators of the world," he means those who are among the Greeks. […]
The Medieval Church1 voice
In which epistle? In this very same one. For when he said above, "purge out the old leaven," hinting at the fornicator, as was shown, then from these words it was already evident that one must not mingle with fornicators. But since they might think …
7 more voices on this verse
The Medieval Church1 voice
Above the Apostle had advised the Corinthians to remove a sinner from their midst. But they postponed doing this, because they gave a false interpretation to something he had written in a previous epistle. Consequently, in correcting this misunderstanding he does three things: first, he …
The Puritans and the Awakening4 voices
Note, Christians are to avoid the familiar conversation of fellow-christians that are notoriously wicked, and under just censure for their flagitious practices. Such disgrace the Christian name. They may call themselves brethren in Christ, but they are not Christian brethren.
A Case of Gross Criminality; 1 It is reported commonly that there is fornication among you, and such fornication as is not so much as named among the Gentiles, that one should have his father's wife.
quarantine:scripture (2026-07-29) — scripture-overlap:86%@v1
I wrote to you in a former epistle - And, doubtless, both St. Paul and the other apostles wrote many things which are not extant now. Not to converse - Familiarly; not to contract any intimacy or acquaintance with them, more than is absolutely necessary.
I wrote unto you in an epistle,.....
The Nineteenth Century2 voices
A commentator
Jamieson, Fausset & Brown1802–1910
Commentary Critical and Explanatory on the Whole Bible (1871)
I wrote . . . in an epistle--rather, "in the Epistle": a former one not now extant. That Paul does not refer to the present letter is proved by the fact that no direction "not to company with fornicators" occurs in the previous part of it; also the words, "in an (or, the) epistle," could not have been added if he meant, "I have just written" (2Co 10:10).
I wrote unto you in an epistle - The wisest and best skilled in Biblical criticism agree that the apostle does not refer to any other epistle than this; and that he speaks here of some general directions which he had given in the foregoing part of it; but which he had now in some measure changed and greatly strengthened, as we see from 1Co 5:11. The words εγραψα εν τῃ επιστολῃ may be translated, I Had written to you in This Epistle; for there are many instances in the New Testament where the aorist, which is here used, and which is a sort of indefinite tense, is used for the perfect and the plusquam-perfect. Dr. Whitby produces several proofs of this, and contends that the conclusion drawn by some, viz. that it refers to some epistle that is lost, is not legitimately drawn from any premises which either this text or antiquity affords. The principal evidence against this is 2Co 7:8, where εν τῃ επιστολῃ, the same words as above, appear to refer to this first epistle. Possibly the apostle may refer to an epistle which he had written though not sent; for, on receiving farther information from Stephanas, Fortunatus, and Achaicus, relative to the state of the Corinthian Church, he suppressed that, and wrote this, in which he considers the subject much more at large. See Dr. Lightfoot. Not to company with fornicators - With which, as we have already seen, Corinth abounded. It was not only the grand sin, but staple, of the place.
The words behind it
8 Greek wordsEvery Greek word of this verse in the order it stands, with what it means and the door to its own study. The last column counts the times a word stands in the whole Bible: the rarer the word, the more the places it appears belong together.
| Greek | Sound | Meaning | Word study | In the Bible |
|---|---|---|---|---|
| Ἔγραψα | egrapsa | I wrote | G1125 → | 189 times |
| ὑμῖν | humin | to you | G4771 → | 2973 times |
| ἐν | en | in | G1722 → | 2738 times |
| τῇ | tea | the | G3588 → | 19766 times |
| ἐπιστολῇ | epistolea | letter | G1992 → | |
| μὴ | me | not | G3361 → | 1066 times |
| συναναμίγνυσθαι | sunanamignusthai | to associate with | G4874 → | |
| πόρνοις, | pornois | [the] sexually immoral, | G4205 → | 10 times |
ἜγραψαI wrote
egrapsaG1125 →189 times
ὑμῖνto you
huminG4771 →2973 times
ἐνin
enG1722 →2738 times
τῇthe
teaG3588 →19766 times
ἐπιστολῇletter
epistoleaG1992 →
μὴnot
meG3361 →1066 times
συναναμίγνυσθαιto associate with
sunanamignusthaiG4874 →
πόρνοις,[the] sexually immoral,
pornoisG4205 →10 times
A shaded row is a word that stands 400 times or fewer in the Bible.
The walk
8 stopsEach card is a verse this one points to, and under it the verses that one points to in turn. Where several paths arrive at the same place, that place is listed first: the text keeps returning to it.
Through
2 Corinthians 6:14Do not be unequally yoked with unbelievers. For what partnership can righteousness have with wickedness? Or what fellowship does light have with darkness?
it leads to
- 1 Corinthians 15:33
Do not be deceived: “Bad company corrupts good character.”
- 1 Corinthians 10:21
You cannot drink the cup of the Lord and the cup of demons too; you cannot partake in the table of the Lord and the table of demons too.
- James 4:4
You adulteresses! Do you not know that friendship with the world is hostility toward God? Therefore, whoever chooses to be a friend of the world renders himself an enemy of God.
- Ephesians 5:6–14
Let no one deceive you with empty words, for because of such things the wrath of God is coming on the sons of disobedience.
- Leviticus 19:19
You are to keep My statutes. You shall not crossbreed two different kinds of livestock; you shall not sow your fields with two kinds of seed; and you shall not wear clothing made of…
- 1 Corinthians 15:33
Through
Ephesians 5:11Have no fellowship with the fruitless deeds of darkness, but rather expose them.
it leads to
- Romans 16:17
Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them.
Reached by 2 separate paths from here.
- Romans 13:12
The night is nearly over; the day has drawn near. So let us lay aside the deeds of darkness and put on the armor of light.
- 1 Timothy 5:20
But those who persist in sin should be rebuked in front of everyone, so that the others will stand in fear of sin.
- Romans 16:17
Where this verse is studied
About 1 Corinthians

This page draws on 14 works. Open the list of works
This page draws on Adam Clarke, Commentary on the Bible; Albert Barnes, Notes, Explanatory and Practical, on the Old and New Testaments (1832-1869); Albert Barnes, Notes, Explanatory and Practical, on the First Epistle to the Corinthians; Ambrosiaster, COMMENTARY ON PAUL'S EPISTLES; Jamieson, Fausset & Brown, Commentary Critical and Explanatory on the Whole Bible; Jamieson, Fausset and Brown, Commentary Critical and Explanatory on the Whole Bible; John Chrysostom, Homily on 1 Corinthians 16; John Gill, Exposition of the New Testament (1746-1748); John Wesley, Explanatory Notes upon the New Testament; Matthew Henry, Commentary on the Whole Bible; Tertullian, On Modesty; Theodoret of Cyrus, COMMENTARY ON THE FIRST EPISTLE TO THE CORINTHIANS 193; Theophylact of Ohrid, Commentary on 1 Corinthians and Thomas Aquinas, Commentary on 1 Corinthians.
