Monotheism is the belief in one God. The document discusses the main monotheistic religions - Judaism, Christianity, and Islam. It provides details on the history, beliefs, practices, holy texts, divisions, and symbols of each religion. Judaism believes in one God called Yahweh and follows the Torah. Christianity expanded from Judaism and believes Jesus is the son of God, following the teachings in the Bible. Islam emerged in the 7th century and believes Allah is the one God, following the teachings in the Quran. The document also briefly discusses some other minor monotheistic faiths such as Zoroastrianism, Sikhism, and others.