Genesis 2:10-14

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

The name of the first is Pishon; it flows around the whole land of Havilah, where there is gold.

The gold of that land is good; the bdellium and the onyx stone are there as well.

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.