This research discusses Jewish ethnicity which is in the national interest of the State of Israel. To analyze this phenomenon will be used a theory from Hans Kohn namely ethnic nationalism, in the context of this Jewish nationalism if we see that one of the formations of a Nation is ethnicity. Jews are an ethnicity that transforms into an understanding of nationality, in order to strengthen its political position and the emergence of identity politics, so Jews as a nation must build political power. Where political power is manifested by an entity of the State of Israel, therefore the State of Israel has an interest in establishing a Jewish identity within the framework of the State of Religion.