In November 1944, he and fellow members of his Gar'in, then already called the Masu'ot Group, established a temporary kibbutz settlement within the bounds of Kfar Haroeh, with the objective of establishing a permanent settlement on Mount Hebron, next to Kibbutz Kfar Etzion. In April 1945, the Gar'in moved to Gat Rimon, next to Petach Tikva. At the beginning of November 1945, the Gar'in established a settlement on the land of Hubela, to the west of Kfar Etzion, and decided to name the new kibbutz Masu'ot Yitzhak, after the Chief Rabbi of Israel, Rabbi Yitzhak HaLevy Herzog, then still living.