Ver. 20, 21. Of Gershon, Libni his son , etc.] Whose genealogy runs thus, Jahath, called Jehiel, ( 1 Chronicles 23:8). Zimmah, between whom was Shimei, ( 1 Chronicles 6:42). Joah, the same with Ethan, ( Chronicles 6:42). Iddo, called Adaiah, ( 1 Chronicles 6:41). Zerah, Jeaterai, whose name was also Ethni, ( 1 Chronicles 6:41), the posterity of Shimei, the brother of Libni, are omitted.
Ver. 16-19 . The sons of Levi, Gershon, Kohath, and Merari .] Which is repeated from ( 1 Chronicles 6:1) for the sake of their posterity, whose names are given in the three following verses, in the same manner as in ( Exodus 6:17-19).

Ver. 20, 21. Of Gershon, Libni his son , etc.] Whose genealogy runs thus, Jahath, called Jehiel, ( 1 Chronicles 23:8). Zimmah, between whom was Shimei, ( 1 Chronicles 6:42). Joah, the same with Ethan, ( Chronicles 6:42). Iddo, called Adaiah, ( 1 Chronicles 6:41). Zerah, Jeaterai, whose name was also Ethni, ( 1 Chronicles 6:41), the posterity of Shimei, the brother of Libni, are omitted.

Matthew Henry Commentary

--We have an account of Levi in this chapter. The priests and Levite were more concerned than any other Israelites, to preserve their descent clear, and to be able to prove it; because all the honours an privileges of their office depended upon their descent. Now, the Spiri of God calls ministers to their work, without any limit as to the families they came from; and then, as now, though believers an ministers may be very useful to the church, none but our great Hig Priest can make atonement for sin, nor can any be accepted but throug his atonement __________________________________________________________________

Original Hebrew