@Brad Huber
Dear AI, am I correct that
@Dave M is pushing a Calvinistic theory in his OP with reference specifically to Rev 17:8?
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Yes. You are correct. Revelation 17:8 is used by Calvinists as support for the doctrine of unconditional individual election, namely that God selected particular individuals for salvation before the foundation of the world.
I found some particularly useful evidence.
1. John MacArthur
Calvinist theologian John MacArthur describes the Lamb's Book of Life as:
"The registry in which God inscribed the names of those chosen for salvation before the foundation of the world."
This is a direct statement of the doctrine you are challenging.
The Church of God International+1
2. John Piper
John Piper explicitly uses Revelation 17:8 to argue that names were written in the Book of Life before the foundation of the world, representing God's free and unconditional election of particular individuals.
Society of Evangelical Arminians
3. Reformed theological teaching
Reformed theologians also interpret the Book of Life as representing God's eternal decree of election, with the names of particular individuals fixed before creation.
RFPA+1
4. Your anti Calvinist distinction
There is a difference between what Revelation 17:8 explicitly says and the theological conclusion Calvinists draw from it.
The verse says:
Whose names were not written in the book of life from the foundation of the world.
Calvinists infer that those whose names were written there were individually chosen by God before creation.
Your disagreement is with that inference and its implications for God's impartiality and the availability of salvation to all.