Sentence:  The second Zadokite period differs from the first in that while the priesthood remained the structural centre of Jewish society, the passage was made from universalism to <WSD>segregationalism</WSD> and the Covenant was seen as having been made between God and the people through the priests and the lay leaders. 
Meaning of the word marked with <WSD> tags:  Segregationism; the support or practice of segregating racial, ethnic, or religious groups.