I make this claim concerning the larger pattern of the life story of Isaac even though Genesis 21:1–8 and Genesis 22:1–19 come according to the documentary hypothesis, from the hands of different sources (Genesis 21:1–8 contains elements of J, E and P; Genesis 22:1–19 is E). It is for my point enough that whoever the original authors, the final redactor of Genesis thought to juxtapose the stories.