Deuteronomy 3:16

And to the Reubenites and to the Gadites I gave from Gilead even to the river Arnon, half the valley, and the border even to the river Jabbok, the border of the sons of Ammon,

Numbers 21:24

And Israel struck him with the edge of the sword and possessed his land from Arnon to Jabbok, even to the sons of Ammon. For the border of the sons of Ammon was strong.

Deuteronomy 2:37

Only to the land of the sons of Ammon you did not come, to any place of the river Jabbok, nor to the cities in the mountains, nor to whatever Jehovah our God denied us.

2 Samuel 24:5

And they passed over Jordan and pitched in Aroer, on the right side of the city that is in the middle of the Valley of Gad, and to Jazer.

Genesis 32:22

And he rose up that night, and took his two wives, and his two slave women, and his eleven sons, and passed over the ford Jabbok.

Numbers 32:33-38

And Moses gave to them, to the sons of Gad and to the sons of Reuben, and to the half the tribe of Manasseh the son of Joseph, the kingdom of Sihon king of the Amorites, and the kingdom of Og king of Bashan, the land with its cities in the borders, the cities of the land all around.

Joshua 12:2-3

Sihon king of the Amorites, who lived in Heshbon and ruled from Aroer, which is on the bank of the river Arnon, and from the middle of the river, and from half Gilead, even to the river Jabbok, the border of the sons of Ammon;

Treasury of Scripture Knowledge

Summary

And unto the Reubenites and unto the Gadites I gave from Gilead even unto the river Arnon half the valley, and the border even unto the river Jabbok, which is the border of the children of Ammon;

Bible References

Reubenites

Numbers 32:33
And Moses gave to them, to the sons of Gad and to the sons of Reuben, and to the half the tribe of Manasseh the son of Joseph, the kingdom of Sihon king of the Amorites, and the kingdom of Og king of Bashan, the land with its cities in the borders, the cities of the land all around.
2 Samuel 24:5
And they passed over Jordan and pitched in Aroer, on the right side of the city that is in the middle of the Valley of Gad, and to Jazer.

River jabbok

Deuteronomy 2:37
Only to the land of the sons of Ammon you did not come, to any place of the river Jabbok, nor to the cities in the mountains, nor to whatever Jehovah our God denied us.
Genesis 32:22
And he rose up that night, and took his two wives, and his two slave women, and his eleven sons, and passed over the ford Jabbok.
Numbers 21:24
And Israel struck him with the edge of the sword and possessed his land from Arnon to Jabbok, even to the sons of Ammon. For the border of the sons of Ammon was strong.
Joshua 12:2
Sihon king of the Amorites, who lived in Heshbon and ruled from Aroer, which is on the bank of the river Arnon, and from the middle of the river, and from half Gilead, even to the river Jabbok, the border of the sons of Ammon;

General references

Numbers 21:31
So Israel lived in the land of the Amorites.
Numbers 34:14
For the tribe of the sons of Reuben according to the house of their fathers, and the tribe of the sons of Gad according to the house of their fathers. And half the tribe of Manasseh have received their inheritance.
Psalm 136:21
and gave their land for an inheritance; for His mercy endures forever;