barren landscapes could never have survived without the kindness of strangers. >> when you're out wandering into a new village and you meet someone and they offer you a cup of coffee or tea, i mean, those are the moments that define abraham for me. >> thank you. >> what do we have here? i'm christiane. very nice to meet you. he brought know one stop where a person welcomes travelers of all faiths to share a meal with him. >> delicious. >> the meal is much like the one sarah and abraham might have offered strangers who came to their home. >> at that meal, they announce that sarah now almost 90, will have a child. she laughs with incredulity. >> with sarah and abraham -- what sarah and abraham didn't know, the bible tells us, is the