Numbers 30:1
Then Moses spoke to {the leaders} of the tribes concerning the {Israelites}, saying, "This [is] the word that Yahweh commanded:
Numbers 7:2
the leaders of Israel, the heads of {the families}, presented an offering; they [were] the leaders of the tribes and [were] the ones in charge of the counting.
Exodus 18:25
And Moses chose men of ability from all Israel, and he appointed them [as] heads over the people, [as] commanders of thousands, commanders of hundreds, commanders of fifties, and commanders of tens.
Numbers 1:4-16
A man from each tribe will be with you, each man the head of {his family}.
Numbers 34:17-28
"These [are] the names of the men who divide up the land for your inheritance: Eleazar the priest and Joshua son of Nun.
Deuteronomy 1:13-17
Choose for yourselves {wise and discerning and knowledgeable men} for [each of] your tribes, and I will appoint them as your leaders.'