Deuteronomy 3:18

And I commanded you at that time, saying, The LORD your God has given you this land to possess it; ye shall pass armed before your brethren, the sons of Israel, all that are valiant.

Joshua 4:12-13

And the sons of Reuben and the sons of Gad and half the tribe of Manasseh passed armed before the sons of Israel, as Moses had said unto them.

Numbers 32:20-24

Then Moses said unto them, If ye will do this thing, if ye will prepare yourselves to go before the LORD to the war

Joshua 1:12-15

Also to the Reubenites and to the Gadites and to half the tribe of Manasseh, Joshua spoke, saying,

Joshua 22:1-9

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

Treasury of Scripture Knowledge

Summary

And I commanded you at that time, saying, The LORD your God hath given you this land to possess it: ye shall pass over armed before your brethren the children of Israel, all that are meet for the war.

General references

Bible References

I commanded

Numbers 32:20
Then Moses said unto them, If ye will do this thing, if ye will prepare yourselves to go before the LORD to the war
Joshua 1:12
Also to the Reubenites and to the Gadites and to half the tribe of Manasseh, Joshua spoke, saying,
Joshua 4:12
And the sons of Reuben and the sons of Gad and half the tribe of Manasseh passed armed before the sons of Israel, as Moses had said unto them.
Joshua 22:1
Then Joshua called the Reubenites and the Gadites and the half tribe of Manasseh

General references

Numbers 32:17
but we ourselves will go arm ourselves and go with diligence before the sons of Israel until we have brought them unto their place, and our little ones shall dwell in the fenced cities because of the inhabitants of the land.