If it were magic, we'd all agree then. But we don't. So, there's more to our endpoint theology than scriptures, which are the same for both.
To illustrate, we can take the scripture Mr Rogers, no slouch in the scripture department, offered earlier in his post against double predestination. You can then show how the same scripture confirms double predestination.
“God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life. For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him. Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God.”
That’s a wonderful verse. “Whosoever believeth.”
Who believes? That’s what I’ve been asking you a dozen times today.
So who believes and who doesn’t? What’s the difference in those two men?