I wrote unto you in an epistle not to company with fornicators:
All Commentaries on 1 Corinthians 5:9 Go To 1 Corinthians 5
George Leo Haydock
I wrote to you in an epistle. If he does not mean what he has said already in this epistle, it must have been in some other, which he had written to them before, (as some conjecture) and which is not now extant.
Now to keep company with fornicators, nor with such like public scandalous sinners, not so much as to eat with them. But you must take notice, that I mean, when they are brethren, or Christians, not when they are infidels, for this cannot be avoided, especially by those who are to labour to convert them. This admonition of the apostle, shows us how much such persons are to blame, who by their carriage encourage, applaud, and are delighted with wicked company. Them who are without the pale and fold of the Church, the apostle leaves to the great judge of the living and the dead. (Witham)