Joshua 22:21

21 And the sons of Ruben, and the sons of Gad, and the half tribe of Manasse answered, and spoke to the captains of the thousands of Israel, saying,

Joshua 22:21 Meaning and Commentary

Joshua 22:21

Then the children of Reuben, and the children of Gad, and the
half tribe of Manasseh, answered
By some person whom they appointed to deliver the answer in their name:

and said unto the heads of the thousands of Israel;
who were over those that were rulers of the thousands of Israel, persons of greater authority than they, being princes of the respective tribes to which they belonged.

Joshua 22:21 In-Context

19 And now if the land of your possession little, cross over to the land of the possession of the Lord, where the tabernacle of the Lord dwells, and receive ye an inheritance among us; and do not become apostates from God, neither do ye apostatize from the Lord, because of your having built an altar apart from the altar of the Lord our God.
20 Lo! did not Achar the of Zara commit a trespass of the accursed thing, and there was wrath on the whole congregation of Israel? and he himself died alone in his own sin.
21 And the sons of Ruben, and the sons of Gad, and the half tribe of Manasse answered, and spoke to the captains of the thousands of Israel, saying,
22 God God is the Lord, and God God himself knows, and Israel he shall know; if we have transgressed before the Lord by apostasy, let him not deliver us this day.
23 And if we have built to ourselves an altar, so as to apostatize from the Lord our God, so as to offer upon it a sacrifice of whole-burnt-offerings, so as to offer upon it a sacrifice of peace-offering, —the Lord shall require it.

The Brenton translation of the Septuagint is in the public domain.