Brown Driver Briggs

 Nethaniah = "given of Jehovah"
1. son of Elishama of the royal family of Judah and father of Ishmael
who murdered Gedaliah
2. father of Jehudi
3. a Levite, one of the 4 sons of Asaph the minstrel
4. a Levite in the reign of king Jehoshaphat of Judah