Abraham is a key figure in the religious texts of Judaism and Christianity (chapters 11:26-25:18 of the book of Genesis and scattered mentions elsewhere), as well as Islam's holy book the Quran.Originally called Abram, he is given the name Abraham at the Covenant ceremony in Genesis 17 (the two names are generally understood to be dialect variations on each other, although the longer form was understood in popular etymology to mean "father of multitudes")...