Mary Joan Winn Leith believes that the decree in Ezra might be authentic and along with the Cyrus Cylinder that Cyrus, like earlier rulers, was through these decrees trying to gain support from those who might be strategically important, particularly those close to Egypt which Cyrus wished to conquer. She also wrote that "appeals to Marduk in the cylinder and to Yahweh in the biblical decree demonstrate the Persian tendency to co-opt local religious and political traditions in the interest of imperial control."