Judaism
There are some movements that combine elements of Judaism with those of other religions. The most well-known of these is Messianic Judaism, a religious movement, which arose in the 1960s, that incorporates elements of Judaism with the tenets of Christianity. The movement generally states that Jesus is the Jewish Messiah, that he is one of the Three Divine Persons, and that salvation is only achieved through acceptance of Jesus as one's savior. Some members of the movement argue that Messianic Judaism is a sect of Judaism. Jewish organizations of every denomination reject this, stating that Messianic Judaism is a Christian sect, because it teaches creeds which are identical to those of Pauline Christianity.
Sect
The ancient schools of fiqh or sharia in Islam are known as "madhhabs." In the beginning Islam was classically divided into three major sects. These political divisions are well known as Sunni Islam, Shia Islam and Khariji Islam. Each sect developed several distinct jurisprudence systems reflecting their own understanding of the Islamic law during the course of the history of Islam.