Avraham led a full and rewarding life. He had so much Nachas (pleasure) watching the amazing young couple, Yitzchak and Rivkah. Even his son Yishmael did Teshuvah before Avraham passed away at the age of 175 years old. Yishmael returned to doing good and believing in HaShem.
Avraham, the first Jewish person is the first of our 3 forefathers (not four fathers). During his lifetime, HaShem tested him 10 times (the last being the “Binding of Yitzchak”) and he passed each one with excellence. Although, it would be 400 years before the Torah would be given, Avraham studied the Torah and performed the Mitzvos!
Avraham was buried in Me’aras HaMachpeilah, next to his wife Sarah.