What Exactly Did Abraham Sacrifice - Part1

Somewhere in the story is a lesson for Abraham, I would like to believe that the test is not for God but for Abraham. A little information will help, at this point in time Abraham is no longer young. Isaac came to their lives, Abraham was already a hundred years old. Can you imagine for the first time God gave Him, and just when he is enjoying, just when you have concrete plans, just when it looks like forever and just when the same voice who promised the boy, is the same voice who said “give him back to Me”, believe me the struggle is not easy.