Then Joshua summoned the Reubenites, the Gadites, and the half-tribe of Manasseh

Numbers 32:18
We will not return to our homes until every Israelite has taken possession of his inheritance.

Numbers 32:20
Moses replied, "If you will do this--if you will arm yourselves before the LORD for battle,

Deuteronomy 33:21
He chose the best land for himself, because a ruler's portion was reserved for him there. He came with the leaders of the people; he administered the LORD's justice and His ordinances for Israel."

Then Joshua called the Reubenites, and the Gadites, and the half tribe of Manasseh,