Numbers 1:53; Numbers 1:16; Numbers 1:22

53 The Levites, however, are to set up their tents around the tabernacle of the covenant law so that my wrath will not fall on the Israelite community. The Levites are to be responsible for the care of the tabernacle of the covenant law.”

16 These were the men appointed from the community, the leaders of their ancestral tribes. They were the heads of the clans of Israel.

22 From the descendants of Simeon: All the men twenty years old or more who were able to serve in the army were counted and listed by name, one by one, according to the records of their clans and families.