Numbers 31:26

31:26 “You and Eleazar the priest, and all the family leaders of the community, take the sum ¹  of the plunder that was captured, both people and animals.

Numbers 32:28

32:28 So Moses gave orders about them to Eleazar the priest, to Joshua son of Nun, and to the heads of the families of the Israelite tribes.

[31:26]  ¹ tn The idiom here is “take up the head,” meaning take a census, or count the totals.