By the 1st century, Second Temple Judaism was divided into competing theological factions, notably the Pharisees and the Sadducees, besides numerous smaller sects such as the Essenes, messianic movements such as Early Christianity, and closely related traditions such as Samaritanism (which gives us the Samaritan Pentateuch, an important witness of the text of the Torah independent of the Masoretic Text). 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.