The influence of the Zohar and the Kabbalah in Yemen, where it was introduced in the 17th century, contributed to the formation of the "Dor Deah" movement, led by Rabbi Yiḥyeh Qafeḥ in the later part of the 19th century, whose adherents believed that the core beliefs of Judaism were rapidly diminishing in favor of the mysticism of the Kabbalah. Among its objects was the opposition of the influence of the Zohar and subsequent developments in modern Kabbalah, which were then pervasive in Yemenite Jewish life, restoration of what they believed to be a rationalistic approach to Judaism rooted in authentic sources, and safeguardal of the older (""Baladi"") tradition of Yemenite Jewish observance that preceded the Kabbalah. Especially controversial were the views of the Dor Daim on the Zohar, as presented in "Milhamoth Hashem" (Wars of the Lord), written by Rabbi Qafeḥ. A group of Jerusalem rabbis published an attack on Rabbi Qafeḥ under the title of "Emunat Hashem" (Faith of the Lord), taking measures to ostracize members of the movement; notwithstanding, not even the Yemenite rabbis who opposed the dardaim heeded this ostracization. Instead, they intermarried, sat together in "batei midrash", and continued to sit with Rabbi Qafeḥ in "beth din".