MATTENAI. 1. 2 . Two of those who had married foreign wives, Ezra 10:33 (called in 1Es 9:33 Maltanneus ), 1Es 9:37 (combined in 1Es 9:34 with the preceding Mattaniah into Mamnitanemus ). 3. Representative of the priestly house of Joiarib in the days of Joiakim ( Nehemiah 12:19 ).