In 1924, following the edict requiring enlistment in the military or supplementary secular studies in the yeshiva, the decision was made to transfer the yeshiva to Eretz Yisroel. Sarna was sent to Eretz Yisroel to choose a site for the yeshiva and to coordinate its establishment there. After evaluating various options he chose the city of Hebron. Consequently, "Knesses Yisroel" became the first Lithuanian yeshiva to transfer to Eretz Yisroel. At that period, Sarna assumed a significant role in the yeshiva's leadership, delivering "shiurim" (lectures) and coordinating study schedules. In the beginning of 1927, the "Alter" fell seriously ill, and Sarna began to deliver "musar" discourses in the yeshiva.