Judaism is an ancient monotheistic Abrahamic religion. Originating around 2000 BCE, it is one of the world's oldest religions. It recognizes Abraham as a Patriarch. Over 14 million people identify themselves as Jews and nearly 3.5 billion follow belief systems influenced by Judaism (including Christianity, Islam and the Bah'ai Faith). Today, Judaism incorporates both a nation and a religion and adheres to a number of core beliefs and traditions taught through the Tanakh. It requires one to honour God through a constant struggle with God's instructions (Torah) and the practice of their mitzvoth, which is a good deed done from religious duty.