What else could he do???
hmmm... I don't know... maybe ask the question 'why?'.
This god could have made a million promises to Abraham, this would still be irrelevant to what he can ask for. I too have a lot of good friends and they have kept a lot of promises, but I can safely say that I would at least raise the question 'why' if one asks me to kill my own child.
That is why I used the word 'mindless'. Disregarding a justification for an atrocious act like this is absolutely unreasonable and I find it completely absurd that this is glorified in any way.
Why would he ask God for a reason? If he asks God then he doubts God and the whole game's a bogey. Abraham does not doubt God therefore he has no reason to ask him. With respect, your friends are not gods. If you have complete faith in a god then there is no reason to suppose that any request, however incomprehensible, would not be for the greater good and as such should be carried out. If you did not want to carry it out, fine, but then your faith would be lacking and your future path would not be following that god. I assume that suicide bombers see it the same way.