You ignore Schofield and other dispensationalists saying elsewhere that salvation has always been by faith.
I thought you didn't read Scofield.
"Also, I have already pointed out to you that when all of Schofield's writings are put together, according to Ryrie, Schofield clearly believed that salvation has always been by grace through faith. Paul clearly says, "Abraham believed God and it was credited to him as righteousness."
I haven't read Schofield. I've read Ryrie about Schofield, and that only very recently on the advice of a friend.
But, Ryrie is a scholar far beyond anyone on these FR pages.