Jesus was the DEFINITION of conservative because he “KEPT” (observed, obeyed, lived) the law of Moses. He therefore FULFILLED the law of Moses, meaning the rituals of Judaism were no longer accepted by God. The Pharisees were progressive for 2 reasons: they “progressively” added laws, traditions, and requirements to God’s commandments. AND were a man-made priesthood who appointed THEMSELVES as experts and authorities over God’s priesthood (the Levitical priesthood). Good question though!!