Answer: His covenant with God helped all Jewish people.
Abraham is considered the father of three Abrahamic religions: Judaism, Islam and Christianism. However, he has no relation with other major religions in the world, such as Hinduism or Buddhism.
While he is recognized as a prophet by Islam, this religion came into existence centuries after the time period when Abraham was supposed to have lived.
Abraham was not immortal. According to the Bible, he died when he was 175 years old and was buried in the Cave of the Patriarchs.
The most accurate statement is that the covenant with God helped Jewish people, as it made them the “chosen people” and started their special relationship with God.