Numbers 4:42

Wycliffe's Bible with Modern Spelling

And the sons of Merari were numbered, by the kindreds, and houses of their fathers,

See the chapter Copy

son of Mahli, son of Mushi, son of Merari, son of Levi.

To priests by their families, and to deacons [or Levites] from twenty years and above, by their orders and companies,

This is the people of Gershonites, that Moses and Aaron numbered, by the kindreds and houses, by the word of the Lord.

from thirty years and above unto fifty years, all that enter to fulfill the customs, or the services, of the tabernacle of the bond of peace;