Judaism is a set of beliefs and practices originating in the Hebrew Bible (Tanakh), as later further explored and explained in the Talmud and other texts.

Judaism presents itself as the covenantal relationship between the Children of Israel (later, the Jewish nation) and God. It is considered either the first or one of the first monotheistic religions, and is among the oldest religious traditions still being practiced today. Many of its texts and traditions are central to the other Abrahamic religions, with Jewish history and the principles and ethics of Judaism having influenced Christianity and Islam, as well as some non-Abrahamic religions. As the foundation of Western Christianity, many aspects of Judaism also correspond to secular Western concepts of ethics and civil law.

Followers of Judaism, whether converts or born into the Jewish nation (including seculars), are called Jews. In 2007, the world Jewish population was estimated at 13.2 million people, 41% of whom lived in Israel and 40% of whom lived in the United States.

In modern Judaism, central authority is not vested in any single person or body, but in sacred texts, religious law, and learned rabbis who interpret those texts and laws.

- From Wikipedia