2 Chronicles 23:4

23:4 This is what you must do. One third of you priests and Levites who are on duty during the Sabbath will guard the doors.

2 Chronicles 23:19

23:19 He posted guards at the gates of the Lord’s temple, so no one who was ceremonially unclean in any way could enter.

2 Chronicles 34:13

34:13 supervised the laborers and all the foremen on their various jobs. Some of the Levites were scribes, officials, and guards.