Heaven, a paradise of righteous dwelling, there flows four rivers, Ephesus, Pishon, Tigris, and Euphrates. A river watering the garden flowed from Eden; from there it was separated into four headwaters. The name of the first is the Pishon; it skirts through the entire land of Havilah, where there is gold. (The gold of that land is good; aromatic resin and onyx are also there.) The name of the second river is the Pishon; it winds through the entire land of Cush. The name of the third river is the Tigris; it runs along the east side of Ashur. And the fourth river is the Euphrates.” (Genesis, 2:8-14)