The above was my answer to what God was doing pre-creation.
Satan/serpent in the Garden is a theme of Revelation in which John identifies them as one and the same. Not being a braintrust, I always assumed it was some kind of possession what with serpents (snakes) also being part of the animal creation.
And, would God pardon Satan?
Why not? He doesn't immediately destroy Him at the end, but rather locks him up for a 1000 years.
The story of Job takes place after Adam. The story of Job does not describe Satan as a cursed cunning animal of the Garden, but as one of God's angels, one the "sons of God" whom God summons and converses, even consults. What transpired between the curse in the Garden and the time of Job? And since when are corporeal animals also considered incorporeal angels?