Ephesians 1:5 “In love He predestined us to be adopted through Jesus Christ for Himself, according to His favor and will, to the praise of His glorious grace that He favored us with in the Beloved.”
In this verse, there seems less of how we are predestined and more of how God always had a plan for adoption. God knows who is in the book of life, but did God determine who would be saved and who would not?
If God determined us before we were born, then we cannot change that. We can’t lose it and others will never gain it. Does that mean the ones we love are already saved or condemned? Does it matter what we do then?