Professor Jiang Xueqin explains the influence of Zoroastrianism on the development of the Hebrew Bible. After Cyrus the Great conquered Babylon, he enabled the Jews to return to Jerusalem to build the Second Temple. Ezra oversaw major religious reforms, including the creation and redaction of what we know today as the Hebrew Bible. Because of the influence of Zoroastrianism, the Bible began to emphasize eschatology, which in turn will pave the way for Christianity.