When I first read it, I was sure startled. I read his 2004 paper that laid out his case, and I read later scholars discussing it. There didn’t seem to be any discussion outside Bible scholarship.
I’ll try to explain the issues, starting from the beginning.
The book of Romans is a long letter by the apostle Paul. He goes on and on, and it’s all him speaking. That’s how it’s read.
But at verse 7:5, rather weirdly, a different voice seems to intrude. There’s odd talk of having “bore fruit for death.” Was that Paul?