§ 02 · King James Bible
Nehemiah 13:30
Thus cleansed I them from all strangers, and appointed the wards of the priests and the Levites, every one in his business;
Simple English
So, I purified them by removing everyone who wasn't from their group, and assigned specific roles for the priests and Levites, each person doing their own job.
* Work in progress - there may be occasional inaccuracies