Quoting Josephus and an LDS prophet is not kosher in this case, Cold Steel. And no one knows how God "spoke" to Abraham--the bible has no words adequate to convey how Abraham received the message at Genesis 22.
The word "sacrifice " is NEVER used in the passage. And there is a word specific for killing the creature being offered: zebach.
You do not understand that the concern is less about how Abraham behaved as about the behavior of God. God the not-liar, the not-wanting-human-sacrifice God, the I-don't-test-with-evil God.
There is a select canon of scriptures that are the single ground for digging up Christian religion's "Truth". Even the LDS church has to deal with the Bible to call itself a Christian denomination--even though LDS prophets use plenty of other extra-biblical sources that modify/qualify the Hebrew/Greek text.
As for Abraham being a type for Jehovah? "For God so loved the world that he killed his only begotten son."? No--it does not say that.
If it were possible for us to imagine a god who was trying to teach us to trust but not kill; a god who wanted us not to act according to a committee's vote but with stumbling faith then we might have held out for a more ambiguous and spiritual intent for this story's reason to exist.
There is no consistency in many of the stories. I do not think we are up to telling the story of god if there is one.