10 For Ezra had devoted himself to the study and observance of the Law of the LORD, and to teaching its decrees and laws in Israel.

King Artaxerxes’ Letter to Ezra

11 This is a copy of the letter King Artaxerxes had given to Ezra the priest, a teacher of the Law, a man learned in matters concerning the commands and decrees of the LORD for Israel:
12 Artaxerxes, king of kings, To Ezra the priest, teacher of the Law of the God of heaven: Greetings.