Deuteronomy 3:18
"And I commanded you at that time, saying, 'The LORD your God has given you this land to possess. All your men of valor shall cross over armed before your brothers, the people of Israel.
Joshua 4:12-13
The sons of Reuben and the sons of Gad and the half-tribe of Manasseh passed over armed before the people of Israel, as Moses had told them.
Numbers 32:20-24
So Moses said to them, "If you will do this, if you will take up arms to go before the LORD for the war,
Joshua 1:12-15
And to the Reubenites, the Gadites, and the half-tribe of Manasseh Joshua said,
Joshua 22:1-9
At that time Joshua summoned the Reubenites and the Gadites and the half-tribe of Manasseh,