Numbers 4:37-39

New Living Translation

³⁷ So this was the total of all those from the Kohathite clans who were eligible to serve at the Tabernacle. Moses and Aaron listed them, just as the Lord had commanded through Moses.

³⁸ The Gershonite division was also listed by its clans and families. ³⁹ The list included all the men between thirty and fifty years of age who were eligible for service in the Tabernacle,