Numbers 3:20
Ver. 20. And the sons, of Merari, by their families,.... The third son of Levi;
Mahli and Mushi; the same as in Ex 6:19; from whom were denominated the families of the Mahlites and Mushites, who, as the preceding families, were numbered at this time: these
[are] the families of the Levites, according to the house of their fathers; in all eight families.