'Expounder' in the Bible

and one of them, an expounder of the Law, asked Him as a test question,

Then an expounder of the Law stood up to test Him with a question. "Rabbi," he asked, "what shall I do to inherit the Life of the Ages?"

Where is your wise man? Where your expounder of the Law? Where your investigator of the questions of this present age? Has not God shown the world's wisdom to be utter foolishness?