דברי הימים ב יז:ז פירוש: רש״י

Ben Hail That was his name. Others explain: he sent to his officers, every officer a valiant man. But I have difficulty with this interpretation because, if so, it should have only said, “Obadiah.” The fact that it says, “to Obadiah” proves that Ben Hail was a person’s name.

to teach in the cities of Judah [i.e., to teach] the Torah and to instruct the Children of Israel.