1 Corinthians 5:1

1ActuallyὍλωςis reportedἀκούεταιamongἐνyouὑμῖνsexual immoralityπορνεία,andκαὶsuchτοιαύτηsexual immoralityπορνείαasἥτιςnot evenοὐδὲamongἐνtheτοῖςpagansἔθνεσιν,so as forὥστε[the] wifeγυναῖκάoneτιναof theτοῦfatherπατρὸςto haveἔχειν.

Sexual immorality is actually heard [of] among you⁺, and sexual immorality such as [is] not even among the nations, so as for one to have the wife of the father.