It is delightful to observe even in these times of deep poverty, how tenacious the Israelites were of their true origin and descent both from Israel and among the order of Aaron. And this is to be referred into an higher cause than merely human considerations or human wisdom. The hand of the Lord was in it that every tribe, and especially the tribe of Judah, might have a clear unquestionable descent from father to son.
Related Commentaries of Ezra 2:61
Ezra 2:61-63
61 And of the children of the priests: the children of Habaiah, the children of Koz, the children of Barzillai; which took a wife of the daughters of Barzillai the Gileadite, and was called after their name:
62 These sought their register among those that were reckoned by genealogy, but they were not found: therefore were they, as polluted,o put from the priesthood.
63 And the Tirshathap said unto them, that they should not eat of the most holy things, till there stood up a priest with Urim and with Thummim.