Genesis 2:8-10

The LORD God planted a garden eastward in Eden, and there He put the man whom He had formed. And out of the ground the LORD God made every tree grow that is pleasant to the sight and good for food. The tree of life was also in the midst of the garden, and the tree of the knowledge of good and evil. Now a river went out of Eden to water the garden, and from there it parted and became four riverheads.