Were Israelite Prophets analogous to Greek Orators?

This is from a post of Christopher Heard on his blog.
He blogs on the Western Commission for the Study of Religion (WECSOR) meeting at Claremont Graduate University.
In one of the sessions, Brad Kelle proposes "that the Greek political orators of the fourth century BCE—Brad drew most of his examples from Demosthenes—function in ways analogous to the socio-rhetorical functions of the "classical" Israelite prophets."

Brad did not convince Chris, but the comparison and possible analogy is certainly interesting.