Romans 7:2-3

ABU(i) 2 For the married woman is bound by law to her husband while he lives; but if the husband die, she is loosed from the law of the husband. 3 So then if, while the husband lives, she be married to another man, she shall be called an adulteress; but if the husband die, she is free from the law, so that she is not an adulteress, though she be married to another man.