 In the 1st century, many Jewish sects existed in competition with each other, see Second Temple Judaism.The sect of Israelite worship that eventually became Rabbinic Judaism and the sect which developed into Early Christianity were but two of these separate Israelite religious traditions.Thus, some scholars have begun to propose a model which envisions a twin birth of Christianity and Rabbinic Judaism, rather than an evolution and separation of Christianity from Rabbinic Judaism.