Numbers 1:16-18

New American Standard Bible

¹⁶ These are the men who were ^(A)called from the congregation, the leaders of their fathers’ tribes; they were the ^(B)heads of ^[a]divisions of Israel.”

¹⁷ So Moses and Aaron took these men who had been designated by name, ¹⁸ and they assembled all the congregation on the ^(C)first day of the second month. Then they registered by ^(D)ancestry in their families, by their fathers’ households, according to the number of names, from twenty years old and upward, head by head,