The story itself made me wonder: who really has enough faith in their God that they would carry that out, as Abraham did.
Shouldn't One be questioning Their own sanity first?
I'm looking at Two Primary Directives here.
1) Love God with All the Strength of Your Being.
2) Love All of Humanity, All of Creation.
So putting God in Proper Perspective, God First in All things, (Input), We, through "Clarity Of Purpose", (Output), starting with baby steps, effect the World around us. Sacrificing Our Young does not exactly compute. All I'm suggesting is that you question your input.
We're talking about World History as according to the Bible -
If you believe your #1 above, then you disbelieve the story of Abraham?
How did Abraham know that he was sane or not? According to God, he made the right choice.
What I Question is the accuracy of the Scribe or Teller, and where His Loyalty lied. Throughout History, Those who give account, are limited by Their Own Perspective. What you have, in the Story of Abraham, was a an Account, for what ever reason, constructed to give an account, without question, placing Abraham in the best Light. Abraham was a Great Man, a Prophet, a Friend of God. He was not Perfect in Understanding or Faith, being Human. There are many issues with Him regarding Perfect Faith, or the Lack of it. Saria is one. Why deny her being his wife, to both Pharaoh, and King Abimelech, claiming her as his sister, out of fear? Two Strikes there.