1 Corinthians 7:39

39A wifeΓυνὴis boundδέδεταιforἐφ’as long asὅσονtimeχρόνονmay liveζῇtheὁhusbandἀνὴρof herαὐτῆς·ifἐὰνhoweverδὲshall have diedκοιμηθῇtheὁhusbandἀνήρ,freeἐλευθέραshe isἐστὶνto whomᾧshe willsθέλειto be marriedγαμηθῆναι,onlyμόνονinἐν[the] Lordκυρίῳ·

A wife has been bound for as long a time [as] her husband may live; but if the husband shall have died, she is free to be married to whom she wants, only in the Lord.