Mark 10:12
And if she divorces her husband and marries another man, she commits adultery — the extension of the principle to women divorcing husbands reflects Gentile (specifically Roman) law under which women could initiate divorce — a right Jewish women did not have under Jewish law. Mark's inclusion of the female-initiation scenario communicates that the Gentile audience is in view and that the principle applies symmetrically regardless of who initiates the divorce.