Genesis 2:13-17

And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.

And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.

And the LORD God took the man, and put him into the garden of Eden to dress it and to keep it.

And the LORD God commanded the man, saying, Of every tree of the garden thou mayest freely eat:

But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.