Clearly I'm not making my question understandable. Let me try another way.
Why wasn't it within God's power and imagination for any OTHER way to forgive man?
AH, I understand now.
It wasn't really about God forgiving Man, it was about Man, in many ways, forgiving himself.
Something we are still doing it seems.
Why not assemble all the nations of the earth and take a vote, for example?
"Who wants to be friends with me (God)??
Actually, he was doing that all that time and still is, God is just not "crashing into" our lives like a gangbuster.
But why did it have to be that WAY, right?
Because, for that time, it was the only way it could have been.
IF God had chosen NOW, it wouldn't have been that way.
But why did God decide on THEN?
I don't know.