Unorthodox: How Megillat Esther Justifies the Holiday of Purim Tzvi Sinensky Rosh Yeshiva of the Gur Aryeh Program at Main Line Classical Academy, Director of the Lamm Heritage Archives, and Editor at The Lehrhaus. More posts by Tzvi Sinensky. Tzvi Sinensky 4 Mar 2019 • 1 min read Newest piece is up on the Lehrhaus!