Numbers 4:2 in the World English Bible
“Take a census of the sons of Kohath from among the sons of Levi, by their families, by their fathers’ houses,
Context
1 And the LORD spake unto Moses and unto Aaron, saying,
2 Take the sum of the sons of Kohath from among the sons of Levi, after their families, by the house of their fathers,
3 From thirty years old and upward even until fifty years old, all that enter into the host, to do the work in the tabernacle of the congregation.