Isaac. Abraham and Isaac , Rembrandt , 1634 Abraham (originally known as Abram) ( Hebrew : אַבְרָהָם , Modern   Avraham Tiberian   ʼAḇrāhām , Persian : پرهام , Arabic : إبراهيم ‎, Ibrāhīm , ʼAbrəham , Greek : Aβραάμ ) is the founding patriarch of the Israelites , Ishmaelites ,