Rabbi Dovid Steinhauer is the rav of Kahal Beis Tefilla in Ramat Eshkol, Jerusalem, and rosh kollel of Kollel Hora'ah Ramat Eshkol. A student of Rav Moshe Shapira and Rav Shlomo Wolbe, he wrote Doresh Emunah, an in-depth study of the thirteen principles of faith.