Judaism is the first monotheistic religion founded by Abraham around 2000 BCE, centered on the belief in one God, Yahweh, and primarily documented in the Torah. Key concepts include the covenant with God, significant historical events like the Exodus, and important texts classified into the Torah, Nevi'im, and Ketuvim. The religion encompasses diverse denominations such as Reform, Conservative, and Orthodox, along with various types of Jewish communities with distinct cultural backgrounds.