The person who discovered the book of law in the sanctuary during the reign of Josiah was
Answer Details
During the reign of King Josiah, the High Priest Hilkiah discovered a book of the Law in the temple of Jerusalem. The book was brought to Josiah, who upon hearing its contents, tore his clothes in dismay and ordered a religious reform in Judah. Therefore, the person who discovered the book of law in the sanctuary during the reign of Josiah was Hilkiah.