|Easton's Bible Dictionary|
(1.) A Kohathite Levite, father of Elkanah (1 Chronicles 6:35).
(2.) Another Kohathite Levite, of the time of Hezekiah (2 Chronicles 29:12).
Int. Standard Bible Encyclopedia
ma'-hath (machath, "snatching"; Meth):
(1) One of the Kohathites having charge of the "service of song" in David's time, son of Amasai (1 Chronicles 6:35). Possibly the same as Ahimoth (1 Chronicles 6:25). He seems also to be the same as the person named in 2 Chronicles 29:12 during Hezekiah's time, though it is probable there is some confusion in the narrative. He is there represented as taking part in the new covenant of Hezekiah and the cleansing of the Lord's house.
(2) One of the overseers of the temple under Conaniah and Shimei (2 Chronicles 31:13); three passages of Scripture give the name, but it is difficult to individuate these because the genealogy identifies the two first named (1 Chronicles 6:35 2 Chronicles 29:12), while the chronology seems to divide them-one in David's day, the other in Hezekiah's. It is not, however, impossible to identify the man of 2 Chronicles 29:12 with him of 2 Chronicles 31:13. Possibly the genealogy has been mistakenly repeated in 2 Chronicles 29:12.
Mahath (4 Occurrences)
Luke 3:26 son of Mahath, son of Mattathias, son of Semein, son of Josech, son of Joda, (WEY)
1 Chronicles 6:35 the son of Zuph, the son of Elkanah, the son of Mahath, the son of Amasai, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
2 Chronicles 29:12 Then the Levites arose, Mahath, the son of Amasai, and Joel the son of Azariah, of the sons of the Kohathites; and of the sons of Merari, Kish the son of Abdi, and Azariah the son of Jehallelel; and of the Gershonites, Joah the son of Zimmah, and Eden the son of Joah; (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
2 Chronicles 31:13 Jehiel, and Azaziah, and Nahath, and Asahel, and Jerimoth, and Jozabad, and Eliel, and Ismachiah, and Mahath, and Benaiah, were overseers under the hand of Conaniah and Shimei his brother, by the appointment of Hezekiah the king, and Azariah the ruler of the house of God. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)