1 Corinthians 7:15

15Ifεἰhoweverδὲtheὁunbelieverἄπιστοςseparates himselfχωρίζεται,let him separate himselfχωριζέσθω·notοὐis under bondageδεδούλωταιtheὁbrotherἀδελφὸςorἢtheἡsisterἀδελφὴinἐντοῖςsuch [cases]τοιούτοις,Intoἐνhoweverδὲpeaceεἰρήνῃhas calledκέκληκενusἡμᾶςὁGodθεός.

But if the unbeliever separates himself, let him separate himself. The brother or the sister is not bound in such [cases]. But God has called you⁺ in peace.