Jaddua (also known as Jaddai) was a descendant in the high priestly line after the return from exile in Babylon. He is mentioned in the book of Nehemiah as the son of Eliashib and father of Jonathan (or Johanan). He is associated with the rebuilding of Jerusalem's walls and temple service during the Persian period.
22As for the Levites, in the days of Eliashib, Joiada, Johanan, and Jaddua, the heads of the fathers' houses were recorded, as were the priests, down to the reign of Darius the Persian.
During Jehoiada's time, the priestly heads were registered in the genealogy of the Levites, which was important for preserving the integrity of the holy service.
22As for the Levites, in the days of Eliashib, Joiada, Johanan, and Jaddua, the heads of the fathers' houses were recorded, as were the priests, down to the reign of Darius the Persian.
Jehoiada lived during a period marked by Nehemiah's religious and social reforms, which included cleansing the priesthood and reinstating Sabbath observance.