NAS: I wrote you in my letter not to associate with immoral people;
KJV: I wrote unto you in an epistle not to company with fornicators:
GWT: In my letter to you I told you not to associate with people who continue to commit sexual sins.
ASV: I wrote unto you in my epistle to have no company with fornicators;
BBE: In my letter I said to you that you were not to keep company with those who go after the desires of the flesh;
DBY: I have written to you in the epistle not to mix with fornicators;
DRB: I wrote to you in an epistle, not to keep company with fornicators.
WBS: I have written to you in this epistle, not to associate with persons guilty of lewdness:
WEB: I wrote to you in my letter to have no company with sexual sinners;
YLT: I did write to you in the epistle, not to keep company with whoremongers --