Thematic Bible: Watered by a river

And a river went out of Eden to water the garden. And from there it was divided and became four heads. The name of the first is Pishon; that is it which surrounds all the land of Havilah, where there is gold. And the gold of that land is good. There is bdellium and the onyx stone. read more.
And the name of the second river is Gihon; it is the one that surrounds the whole land of Cush. And the name of the third river is Tigris; it is that which goes toward the east of Assyria. And the fourth river is Euphrates.