Unlike other ancient Near Eastern gods, the Hebrew God is portrayed as unitary and solitary; consequently, the Hebrew God's principal relationships are not with other gods, but with the world, and more specifically, with the people he created. Judaism thus begins with ethical monotheism: the belief that God is one and is concerned with the actions of mankind. According to the Tanakh (Hebrew Bible), God promised Abraham to make of his offspring a great nation. Many generations later, he commanded the nation of Israel to love and worship only one God; that is, the Jewish nation is to reciprocate God's concern for the world. He also commanded the Jewish people to love one another; that is, Jews are to imitate God's love for people. These commandments are but two of a large corpus of commandments and laws that constitute this covenant, which is the substance of Judaism.