@Leadfoot,
These two positions are different.
1. God didn't disobey Jesus' will, but Abraham disobeyed Issac's will.
2.God didn't hurt Jesus mentally, but Issac was hurt mentally. When his father took the knife highly in the sky and want to kill him, he must be terrified and think the world is completely terrible, the harm in his heart was permenant.
3. This story shew an original religion in Cannan, which sacrifice human beings to God. In our days, if we hear a voice to command us to sacrifice human beings, we are sure it comes from Satan but not God, because we don't have the custom to sacrifice human beings. When Abraham heard a voice to sacrifice his son, he didn't doubt and did it immediately, that fact prove there was a custom to sacrifice human beings. In my view, this story just told us the custom in Cannan and it's not a truth.
I think Religion was devoloping step by step, it was Multy-gods religion in Genesis, one-god religion in Moses time or even later, and Chritianality in New testament time.