Numbers 4:42-45

42Moses and Aaron also recorded the names of Merari's descendants in their clans and in their families.

43They counted all the men who worked in the Tent of Meeting. They counted them if they were between 30 and 50 years old.

44They recorded them in clans. There were 3,200 men.

45Moses and Aaron recorded the descendants of Merari who worked at the Tent of Meeting. The Lord had told Moses that they must do that.