 He received "semikhah" (ordination) from Rabbi Abraham Isaac Kook, Rabbi Isaiah Silberstein of Vác, and Rabbi Yisrael Chaim Daiches of Leeds, England.Epstein married twice, he married his first wife Jeanie in Belfast in 1921 and the couple had two children.However, she died in 1924, and Epstein would marry Gertrude on 3 June 1925.