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:
Here is an account, I. Of the priests that returned, and they were a considerable number, about a tenth part of the whole company: for the whole were above 42,000 (Ezr 2:64), and four families of priests made up above 4200 (Ezr 2:36-39); thus was the tenth God's part - a blessed decimation.
Commenting on Ezra 2:36-63
The whole congregation together was forty and two thousand three hundred and threescore. But the sums before given make no more, with Zerubbabel, and the ten principal men, than 29,829, so that there are more than 12,000 wanting; wherefore, in answer to the question, where are the 12,000?
the children of Barzillai--He preferred that name to that of his own family, deeming it a greater distinction to be connected with so noble a family, than to be of the house of Levi. But by this worldly ambition he forfeited the dignity and advantages of the priesthood.