Abraham is the founding patriarch of the Israelites, Ishmaelites, Edomites, and the Midianites and kindred peoples, according to the book of Genesis. Judaism, Christianity, and Islam are sometimes referred to as the "Abrahamic religions" because of the progenitor role that Abraham plays in their holy books. In both the Jewish tradition and the Quran, he is referred to as "our Father". Jews, Christians, and Muslims consider him father of the people of Israel. For Jews and Christians this is through his son Isaac, by his wife Sarah; for Muslims, he is a ####prophet of Islam and the ancestor of Muhammad through his other son Ishmael, born to him by Sarah's handmaiden, Hagar. Abraham is held as a founding father in the Jewish, Christian, and Islamic religions. Genesis states that the nation of Israel descended from him through his second son, Isaac. Many Arab nations are said to have descended from him through his first son, Ishmael, and Muslims believe that the prophet Muhammad is his direct descendant - this tradition is attested as early as the 3rd/2nd-century BC book of Jubilees.
In Judaism
Abraham is hailed as the first Hebrew and the father of the Jewish people. As a reward for his act of faith in one God, he was promised that Isaac, his second son, would inherit the Land of Israel (then called Canaan).
In Christianity
In the New Testament Abraham is mentioned prominently as a man of faith, and the apostle Paul uses him as an example of salvation by faith, as the progenitor of the Christ or Messiah.
In Islam
Abraham, known as Ibrahim in Arabic, is very important in Islam, both in his own right as a prophet and as the father of Ishmael and Isaac. Abraham is mentioned in many passages in 25 of the 114 chapters of the Qur'an.
Abraham, commonly termed, "Friend of God" by Muslims, is revered as one of the Prophets in Islam, and the person who gave Muslims their name of Muslims ("those who submit to God").
Abraham's supposed footprint is displayed outside the Kaaba, which is on a stone, protected and guarded by Saudi Arabian Religious Police. The annual Hajj, the fifth pillar of Islam, follows Abraham's, Hagar's, and Ishmael's journey to the sacred place of the Kaaba. Islamic tradition narrates that Abraham's subsequent visits to the Northern Arabian region, after leaving Ishmael and Hagar (in the area that would later become the Islamic holy city of Mecca), were not only to visit Ishmael but also to construct the first house of worship for God (that is, the monotheistic concept and model of God), the Kaaba—as per God's command.