2 Esdras 13:41-43

New Revised Standard Version, Anglicised

⁴¹ But they formed this plan for themselves, that they would leave the multitude of the nations and go to a more distant region, where no human beings had ever lived, ⁴² so that there at least they might keep their statutes that they had not kept in their own land. ⁴³ And they went in by the narrow passages of the Euphrates river.