Numbers 4:37-39

New English Translation

³⁷ These were those numbered from the families of the Kohathites, everyone who served in the tent of meeting, whom Moses and Aaron numbered according to the word of the Lord by the authority of Moses.

³⁸ Those numbered from the Gershonites, by their families and by their clans, ³⁹ from thirty years old and upward to fifty years old, everyone who entered the company for the work in the tent of meeting—