Numbers 1:16-18

¹⁶These were the noblest princes of the multitude, by their lineages, and kindreds, and the heads of the hosts of Israel,

¹⁷the which princes Moses and Aaron took, with all the multitude of the common people.

¹⁸And they gathered in the first day of the second month, and they told or numbered them by kindreds, and houses, and meines, and heads, and names of each by themselves, from the twentieth year and above,