1 Corinthians 5:9

I wrote unto you in an epistle not to company with fornicators:
— 1 Corinthians 5:9, King James Version

In other translations

World English Bible (WEB)

I wrote to you in my letter to have no company with sexual sinners;

American Standard Version (ASV)

I wrote unto you in my epistle to have no company with fornicators;

Young's Literal Translation (YLT)

I did write to you in the epistle, not to keep company with whoremongers--