@Calvin My thinking is there is God's plan of creation. The angels, in varying degrees no of it. The angel that is to become Satan and the Devil oppose it. That's when God intervenes to salvage hi plan and the some for us. Unlikely that God would the share his salvation plan with one who has now become enemy - a smart one though who ccan guess and knows in the end he will be defeated. He doesn't get to guess that God will become man in the way he did.
*The angels, in varying degrees know of it.
From my understanding of your position, there is only one plan?
You said this: *I apologize if I'm not understanding you correctly, but you seem to be drawing a distinction between the creation and the plan of salvation.*in the comment to your answer . Please explain.
May I understand Devil's plan in opposition to God's one plan? My thinking is that the Isaiah passage is the opposition to God's original plan which is not equal to his plan of salvation.
If I understand where you are coming from, you are saying that God made the creation and planned to send his children down to earth. Then Satan messed it up and God had to send a savior to fix things. Please correct me it that's not right.
So you say there is God's original plan and his plan of salvation. What's the difference?
Another approach: God created for an end and that end was Jesus Christ, God-made-man, so that God would be all in all. God wanted the angels to worship his Son as he brought him in the world. That's what the Angel-soon-to-be-Satan-or-Devil rebelled. As you said, he seduced the other angels to be their own lords. God had now to tweak his plan with His Son now coming as Savior.
The Devil wanted to frustrate the end goal of creation or not to be part of it.
Our history is we were seduced and perhaps that's why perhaps we were spared while the devils were not since theirs was of malice. It is speculation that Adam or some of his descendants could have eaten the forbidden fruit on their own.
@Calvin Correct. Remember the rebellion causes a disturbance iin goodness and affronts the creator and justice demands reparation needs to be made. For scriptural basis I believe St. Paul says Jesus reconciled all both, on earth and in heaven ... (paraphrasing)
@Calvin The incarnation. God becoming man. Remember creation is an act of love. just as were are unable to make adequate reparation when we sin, so even if we had not sinned, all creation, especially free creatures, would have been unable to adequately return God's love unless God became man and so the love would be that of equals.
In a nutshell: God made the earth. He sent mankind down to earth with the ability to choose good or evil. Man chose evil. Christ came and payed the price for sin and enabled us to become good and return as we follow the Gospel.