Abrahamic religions teachings of Quran are presented as the direct revelation and words of Allah. Islam (meaning "submission", in the sense of submission to God) is universal (membership is open to anyone); like Judaism, it has a strictly unitary conception of God, called "tawhid", or "strict" or "simple" monotheism. Historically, the Abrahamic religions have been considered to be Judaism, Christianity and Islam. Some of this is due to the age and larger size of these three. The other, similar religions were seen as either too new to judge as being truly in the same class, or too small to be of significance
Christianity and other religions practices in Judaism, Christianity, and Islam came into being without Zoroastrian influence." The new faith (Zoroastrianism) emerged in larger Persian empires. " Zoroastrianism reflected the cosmopolitan society of the empires". During this time Zoroastrianism profoundly effected the beliefs and values of Judaism, Christianity, and Islam ("Traditions & Encounters: A brief global History", Jerry H. Bentley. pg. 93). It is also possible that Zoroastrianism and later Jewish theology came from a common source. "For more on this theory, see Jewish history, Judaism, and Zoroastrianism." In the Younger Avesta, three divinities of the Zoroastrian pantheon are repeatedly identified as ahuric, meaning that