16 We notify the king that if this city is built and the walls of it set up, then you shall have no portion Beyond the River.
Ezra 4:16 Cross References - MKJV
2 Samuel 8:3
3 David also struck Hadadezer, the son of Rehob, king of Zobah, as he went to recover his border at the river Euphrates.
1 Kings 4:24
24 For he had the rule over all on this side of the River, from Tiphsah even to Azzah, over all the kings on this side the River. And he had peace on all sides all around him.
Ezra 4:20
20 There have been mighty kings also over Jerusalem, who have ruled over all Beyond the River. And toll, taxes, and custom was paid to them.