If you find it, see if you can start with the most persuasive scriptures first and no more than maybe 10 at a time at most. Maybe just start with the scriptures with the word "predestined" first, then "foreknow", "chosen [elect]", "ordained" as found in a concordance.
He's late on his assignment. Perhaps he can't find any evidence to present for that so often pontificated without evidence doctrine of Predestination. Give him some more time. Perhaps his interpretive and allegorizing so-called Holy Spirit is too busy right now on that St. Peter and Rome thread to help him here.