Mattaniah

"Gift of Jehovah. (1.) A Levite, son of Heman, the chief of the" "ninth class of temple singers (1 Chr. 25:4, 16)." "(2.) A Levite who assisted in purifying the temple at the reformation under Hezekiah (2 Chr. 29:13). "(3.) The original name of Zedekiah (q.v.), the last of the kings "of Judah (2 Kings 24:17). He was the third son of Josiah, who" fell at Megiddo. He succeeded his nephew Jehoiakin.

Definition of Mattaniah:
"gift, or hope, of the Lord"