Joshua 22:1 Midrash

אָ֚ז יִקְרָ֣א יְהוֹשֻׁ֔עַ לָרֽאוּבֵנִ֖י וְלַגָּדִ֑י וְלַחֲצִ֖י מַטֵּ֥ה מְנַשֶּֽׁה׃

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

Read midrashic interpretation of Joshua 22:1: and classical rabbinic exegesis.