Stephen Westerholm comments (in regard to the New Perspective):
Students who want to know how a Rabbinic Jew perceived humanity's place in God's world will read Paul with caution and Luther not at all. On the other hand, students who want to understand Paul, but feel that they have nothing to learn from Martin Luther, should consider a career in metallurgy. Exegesis is learned from the masters.
--Israel's Law and the Church's Faith, 173 (HT: Theopedia)
I had to look up "metallurgy." According to Wikipedia, it is "a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures."