Numbers 32:17
but we will be armed and ready to go to war before the [other tribes of the] Israelites, until we have brought them to their place, while our children live in the fortified cities because of the inhabitants of the land.
Joshua 4:12-13
The sons of Reuben and the sons of Gad and half the tribe of Manasseh crossed over armed for battle before the [other] sons of Israel, just as Moses had spoken to them;
Numbers 32:29-32
Moses said to them, “If the sons of Gad and the sons of Reuben will cross over the Jordan with you, every man armed for battle before the Lord, and the land is subdued before you, then you shall give them the land of Gilead [east of the Jordan River] as a possession;
Deuteronomy 3:18-20
“Then I commanded you [Reuben, Gad, and the half-tribe of Manasseh] at that time, saying, ‘The Lord your God has given you this land to possess; all you who are brave men shall cross over [the Jordan] armed before your brothers, the sons of Israel.