2 Chronicles 17:7
Also in the third year of his reign he sent to his princes, even to Ben–hail, and to Obadiah, and to Zechariah, and to Nethaneel, and to Michaiah, to teach in the cities of Judah.
Cross-reference
2 Chronicles 15:3 notes the lack of teaching priests — the very problem Jehoshaphat's action addresses.
In 2 Chronicles 34:30, Josiah reads the Book of the Covenant publicly—another royal initiative to teach God's law to Judah, paralleling Jehoshaphat's sending officials.
Deuteronomy 33:10 commands Levites to teach God's law — the duty fulfilled by Jehoshaphat's officials.
Nehemiah 8:7 shows Levites helping people understand the Law — parallel to Jehoshaphat's teaching officials.
Nehemiah 8:8 describes reading and explaining the Law clearly — same instructional purpose.
Ezra 7:25 commands Ezra to appoint teachers for those ignorant of God's law—a similar mandate to Jehoshaphat's sending officials to teach.
Nehemiah 8:2 records Ezra reading the Law before the assembly—another example of public instruction in God's law, like Jehoshaphat's teaching mission.