'Genealogy' in the Bible

And my God put into mine heart to gather together the nobles, and the rulers, and the people, that they might be reckoned by genealogy. And I found a register of the genealogy of them which came up at the first, and found written therein,

These sought their register among those that were reckoned by genealogy, but it was not found: therefore were they, as polluted, put from the priesthood.