@Rival brought up an interesting point!
It is not just a question for a savior to be human but an adversary who is a subordinate to his Creator knowingly fights his creator and knows he will lose. Either Satan is the most idiotic malevolent entity, or merely the avatar of stupidity. I always was curious why Satan would fight against someone who it knows will eventually defeat it. It's almost like giving a five year old boxing gloves to spar Mike Tyson.
Interesting points.....
But if you examine the events recorded in the Bible concerning this entity called "satan the devil" you will first of all notice that he has no name. These are descriptive titles explaining his fallen nature...literally "resistor" and "slanderer". Jesus even called him a murderer.
So why would a formerly faithful angel choose to rebel against the most powerful being in existence? Apparently it was because of jealousy and envy. He gave himself away when he tempted Jesus by offering him all the kingdoms of the world in exchange for one act of worship.....not continuing worship, but just that one time was enough.
He told the woman a lie in Eden...that she would "be like God" if she ate the forbidden fruit. In reality, by eating the fruit, she would make him into a god by obeying him. He was the one who wanted to "be like God", receiving worship from the only beings in existence who could see him as a god because they were lower, intelligent creatures.
You will also notice that satan did not challenge God's power, because he knew God could snuff out his existence instantly....so why did God let the rebels live? Because the devil challenged God's sovereign right to set reasonable limits for his human creation, who alone were made in his image....i.e. possessing his qualities and moral attributes. If God had simply eliminated the rebels, it would only have demonstrated that he is more powerful, which wasn't the issue. He allowed the rebels to live and to go on their merry way....without his interference because he knew that in the end, when all avenues to rule themselves independently had utterly failed, he could record all that failure in the annals of human history to set precedents that would last for all eternity to come.
Never again could a free willed creature (either angelic or human) oppose God's Universal Sovereignty.
In the Revelation, satan and his followers, both human and angelic are eliminated from existence, never to blight God's purpose again.
I also believe that the devil underestimated God's response in barring the way to the tree of life. His new found 'worshippers' would now die, just as God had said they would, and satan would have to constantly recruit more by the same means....lies and deceit.
As for why Jesus had to become a human......Gods law was "eye for an eye, tooth for a tooth, life for a life", denoting that an equivalent payment was necessary to satisfy God's perfect justice. What humans lost in Eden was perfect human life, what Jesus offered was his perfect life in exchange.
He is called the "Redeemer" because under Jewish law, a man could sell himself or a child into servitude in order to pay a debt. That situation would stand until the debt was paid.....but if a benefactor came along and paid the debt, the servant was free to go home.
Jesus is our "Redeemer", paying the debt that our forefather Adam left as the awful inheritance for all his children. In Matthew 18:23-35 Jesus gives an illustration of the size of the debt that our sin amounted to in God's eyes and compares it with a debt that we might owe to a fellow human. It gives us an idea of how big a debt Jesus sacrifice paid for.
That is how I have come to appreciate these questions.....
