God will see. That is interesting, isn't it. Who's looking? What are we to make of Isaac - and what are we to make of Job - the innocent suffering for the sin of the world - whether it be child sacrifice or random violence? Do we take Abraham's obedience as a model or do we take the meaning behind the story as a model? Must we stop short of explanation? [The pdf, xml, and score are in the usual place - maybe someone else would like to complete the translation.]
We might notice also that this is a male thing. The woman is never heard from again. Sarah never speaks again in the story. The next thing we hear of her is that she has died and Abraham buys her grave for 400 shekels of silver - a 'little thing', i.e. a hard bargain with the Hittites.