Genesis 2:14

2:14 The name of the third river is Tigris; it runs along the east side of Assyria. The fourth river is the Euphrates.

Genesis 15:18

15:18 That day the Lord made a covenant with Abram: “To your descendants I give this land, from the river of Egypt to the great river, the Euphrates River –

Joshua 24:2-3

24:2 Joshua told all the people, “Here is what the Lord God of Israel says: ‘In the distant past your ancestors lived beyond the Euphrates River, including Terah the father of Abraham and Nahor. They worshiped other gods, 24:3 but I took your father Abraham from beyond the Euphrates and brought him into the entire land of Canaan. I made his descendants numerous; I gave him Isaac,