1 Chronicles 9:1-2

Young's Literal Translation

9 And all Israel have reckoned themselves by genealogy, and lo, they are written on the book of the kings of Israel and Judah -- they were removed to Babylon for their trespass.

² And the first inhabitants, who [are] in their possession, in their cities, of Israel, [are] the priests, the Levites, and the Nethinim.