Bilangan 8:10

8:10 Then you are to bring the Levites before the Lord, and the Israelites are to lay their hands on the Levites; ¹ 

Bilangan 31:48

31:48 Then the officers who were over the thousands of the army, the commanders over thousands and the commanders over hundreds, approached Moses

Bilangan 31:52

31:52 All the gold of the offering they offered up to the Lord from the commanders of thousands and the commanders of hundreds weighed 16,750 shekels. ² 

[8:10]  ¹ sn The consecration ceremony was to be done in full view of the assembled people. In all probability the laying on of the hands was done through representatives of the tribes, and not all the people. This ritual of the imposition of hands showed that the people were taking part in the consecration, and that the Levites represented them in the service of the Lord.

[31:52]  ² sn Or about 420 imperial pounds.