So all Israel were reckoned by genealogies; and behold, they are written in the book of the kings of Israel: and Judah was carried away captive to Babylon for their disobedience.
TSK
TSK · Ezra 8:1
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These likewise cast lots even as their brothers the sons of Aaron in the presence of David the king, and Zadok, and Ahimelech, and the heads of the fathers' [houses] of the priests and of the Levites; the fathers' [houses] of the chief even as those of his younger brother.
The whole number of the heads of fathers' [houses], even the mighty men of valor, was two thousand and six hundred.
who came with Zerubbabel, Jeshua, Nehemiah, Seraiah, Reelaiah, Mordecai, Bilshan, Mispar, Bigvai, Rehum, Baanah. The number of the men of the people of Israel:
These sought their register [among] those who were reckoned by genealogy, but they were not found: therefore were they deemed polluted and put from the priesthood.
There went up some of the children of Israel, and of the priests, and the Levites, and the singers, and the porters, and the Nethinim, to Jerusalem, in the seventh year of Artaxerxes the king.
Some from among the heads of fathers' [houses] gave to the work. The governor gave to the treasury one thousand darics of gold, fifty basins, and five hundred thirty priests' garments.