Romans 7:3

3Thenἄραthereforeοὖνbeing aliveζῶντοςtheτοῦhusbandἀνδρὸςan adulteressμοιχαλὶςshe will be calledχρηματίσειifἐὰνshe isγένηταιto manἀνδρὶanotherἑτέρῳ·ifἐὰνhoweverδὲshould dieἀποθάνῃtheὁhusbandἀνήρ,freeἐλευθέραshe isἐστὶνfromἀπὸtheτοῦlawνόμου,[so as for]τοῦnotμὴto beεἶναιherαὐτὴνan adulteressμοιχαλίδαhaving beenγενομένηνto manἀνδρὶanotherἑτέρῳ.

So then, of the husband being alive, if she becomes unto another man, she will be called an adulteress; but if the husband should die, she is free from the law, [so as] not for her to be an adulteress, having become unto another man.