Numbers 10:4

And if with one they blow, then have the princes, heads of the thousands of Israel, met together unto thee;

Exodus 18:21

And thou -- thou dost provide out of all the people men of ability, fearing God, men of truth, hating dishonest gain, and hast placed these over them, heads of thousands, heads of hundreds, heads of fifties, and heads of tens,

Numbers 7:2

and the princes of Israel (heads of the house of their fathers, they are princes of the tribes, they who are standing over those numbered) bring near,

Numbers 1:4-16

and with you there is a man for a tribe, each is a head to the house of his fathers.

Deuteronomy 1:15

'And I take the heads of your tribes, men, wise and known, and I appoint them heads over you, princes of thousands, and princes of hundreds, and princes of fifties, and princes of tens, and authorities, for your tribes.

Treasury of Scripture Knowledge

Summary

And if they blow but with one trumpet, then the princes, which are heads of the thousands of Israel, shall gather themselves unto thee.

Bible References

General references

Numbers 1:4
and with you there is a man for a tribe, each is a head to the house of his fathers.
Numbers 7:2
and the princes of Israel (heads of the house of their fathers, they are princes of the tribes, they who are standing over those numbered) bring near,
Exodus 18:21
And thou -- thou dost provide out of all the people men of ability, fearing God, men of truth, hating dishonest gain, and hast placed these over them, heads of thousands, heads of hundreds, heads of fifties, and heads of tens,
Deuteronomy 1:15
'And I take the heads of your tribes, men, wise and known, and I appoint them heads over you, princes of thousands, and princes of hundreds, and princes of fifties, and princes of tens, and authorities, for your tribes.