Mattithiah

A man, in the time of Exile and Return · named in 1 verse

the name means gift of Jah Strong's Lexicon

Mattithiah, a Levite, assisted Ezra in reading the Law to the people.

From Easton's Bible Dictionary

Gift of Jehovah. (1.) One of the sons of Jeduthun (1 Chr. 25:3, 21).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at Nehemiah 8:4.

Nehemiah 8:4 Ezra the scribe stood on a high wooden platform built for this occasion. At his right side stood Mattithiah, Shema, Anaiah, Uriah, Hilkiah, and Maaseiah, and at his left were Pedaiah, Mishael, Malchijah, Hashum, Hash-baddanah, Zechariah, and Meshullam.