10. Does God forgive those who come before the Great White Throne Judgment? If not, why not?
This is described in Revelation 20. The text says that this is a judgment of the dead. The dead are judged based on their deeds. Those whose names are not written in the book of life are NOT forgiven.
The implication is that those whose names ARE written in the book of life will have their forgiveness restated, the promise of eternal life granted in their lifetime will be affirmed there.