Nonetheless, The Kopizhnitzer Rebbe who could not read German wanted to evaluate Heschel's European writings. He asked Rabbi Shraga Feivel Mendelowitz, the head in the 1920's of a community in Williamsburg that had become a citidal of Orthodoxy, whether there was any apikorsus in them. The authoritave Rabbi Mendlowitz pronounced Heschel's writings to be kosher.
Abraham Joshua Heschel: Spiritual Radical pg. 81