>> to this day, the story is commemorated by muslims all over the world on a holiday called ad allata. the hussain family are muslim americans living in new jersey. one son is about the same age abraham's son would have been and he's trying to imagine how he would have felt. >> he was probably extremely scared what would happen and worry for his dad, trouble getting over the fact he had to kill his own son, but i'm sure he understand coming from a higher power. >> for jews and christians, too, the story on what happened next is the same. abraham's faith was absolute. he didn't argue with god. he tied up his son and laid him on the rock and drew his knife. >> as the story goes, abraham literally lifts the knife before god says abraham, abraham, you