"This recipe came out of our home school Bible Workbook called Genesis to Joshua. My children had to make it one day for Bible Class. For those who need a refresher...Esau came in from the wilderness after hunting and sold his birthright to Jacob for some of his soup. I have to tell you, I have never been a big lentil soup fan, but the lemon juice in this soup really brightens the flavor and I found it to be very pleasing...even my picky eaters enjoyed it!..."