Jehoiada means in the bible: Jehovah knows. He was the high priest responsible for the overthrow and establishment of Joash the King. As a token of his honor, he was also buried alongside the Judah Kings 2 Kgs. 11:4-17; 12:2, 7, 9; 2 Chr. 23:1-18; 24:2-25.
(in Bible Dictionary)
