Proto-Karaites considered themselves descendants of the Kingdom of Israel and harboured great animosity towards Judeans.
Karaite theory suggests that Idumeans would have taken to Christianity being convinced that they were people of Esau and may have regarded Jesus as a sort of Prophetic Messiah "Moses" for the children of Esau in much the same way that Moses was to the children of Jacob. According to the same theory, Hagar's children wee also awaiting a prophettheir "Moses". However, for proto-Karaites, the Ieso in the Quran refers not to [[Rebbe Yehoshuah Minzaret]] but to [[Plony Yeshu HaNotzri Ben Stada]] who they nick-named in Hebrew "'''מסיח'''" meaning "distracting" but did not regard him as Moshia'. They regarded him as a Messenger to the Idumeans and promoted the idea of Mahmouda ibn Ishmael as a Messenger to the Ishmaelites.
The proto-Karaites were governed by a clerical office called a Ma'amad or Hakhamate. Just as Abu Isa after them, the proto-Karaites referred to their Hakhamate as the "Nabi". In fact there were very particular marriage rules which applied to the Nabi Clerical Class also known as the Ahl ulBayt. The rules were similar to the Yukhasin categories observed by other Jews and to those which pertained to the Feudal class in Europe.