exegete
A person skilled in exegesis; an interpreter of texts, difficult passages, law, oracles, and similar obscure or esoteric sources.
A text that could not speak to the present was dead, and the exegete had a duty to revive it.
Where it comes from
From Ancient Greek ἐξηγητής (exēgētḗs, “expounder, interpreter”).
Adapted from the Wiktionary entry exegete (CC BY-SA 4.0).