'River' in the Bible

Now a river flowed out of Eden to water the garden; and from there it divided and became four rivers.

The name of the second river is Gihon; it flows around the whole land of Cush.

The name of the third river is Tigris; it flows east of Assyria. And the fourth river is the Euphrates.

On that day the Lord made a covenant with Abram, saying,“To your descendants I have given this land,From the river of Egypt as far as the great river, the river Euphrates:

So he fled with all that he had; and he arose and crossed the Euphrates River, and set his face toward the hill country of Gilead.

Then Samlah died, and Shaul of Rehoboth on the Euphrates River became king in his place.