2 Samuel 8:3
David also defeated Hadadezer son of Rehob, king of Zobah, who had marched out to restore his dominion along the Euphrates River.

Hadadezer

1 Samuel 14:47
After Saul had assumed the kingship over Israel, he fought against all his enemies on every side--the Moabites, the Ammonites, the Edomites, the kings of Zobah, and the Philistines. Wherever he turned, he routed them.

2 Samuel 10:6
When the Ammonites realized that they had become a stench to David, they hired twenty thousand Aramean foot soldiers from Beth-rehob and Zoba, as well as a thousand men from the king of Maacah and twelve thousand men from Tob.

Psalm 60:1
You have rejected us, O God; You have broken us; You have been angry; restore us!

by the river

Genesis 15:18
On that day the LORD made a covenant with Abram, saying, "To your descendants I have given this land--from the river of Egypt to the great River Euphrates--

Exodus 23:31
And I will fix your borders from the Red Sea to the Sea of the Philistines, and from the desert to the Euphrates. For I will deliver the inhabitants into your hand, and you will drive them out before you.