Eliyahu builds the altar with twelve stones, and his actions are reminiscent of the altar that Moshe constructed at Sinai. Moshe created a covenant between the nation and God concerning the commandments of the Torah, while Eliyahu created a covenant concerning the recognition and acceptance of God. The reference to Ya’akov-Yisrael is meant to create a dividing line between the twelve tribes of Israel and the foreign elements that are threatening the unity and uniqueness of the nation.

Courtesy of the Virtual Beit Midrash, Yeshivat Har Etzion