Replies

He made the decision before the Fall, with the knowledge that the Fall will [sic] come and with the knowledge of its consequences.

Eternity isn't endless time. God's making the decision was, if anything, contemporaneous with the Fall and with every event of every life that has or will have been lived from the beginning of the universe to the Day of the Lord. In the same way, Jesus is the lamb slain from the foundations of the earth. This doesn't mean that Jesus was slain a bazillion years before his crucifixion less than 2000 years ago but that his death at the end of the ages was efficacious throughout all time to justify the children of the promise wherever they might be.