You’d better hope those books of the Bible are truly Holy Spirit inspired.
You said: You’d better hope those books of the Bible are truly Holy Spirit inspired.
I don’t have to hope. The Catholic Church determined the authenticity of the books, including the books you accept. Which leads to the observation that protestants only have hope that the books of the Bible are inspired by the Holy Spirit since it was the Catholic Church which determined the books of the New Testament. Reject the Church, reject the authority that determined the New Testament. Quite a catch-22 protestants created for themselves.