And when all things were created as has been described by Moses - both heaven and earth, and the things therein - the twelve angels of the Mother were divided into four principles, and each fourth part of them is called a river - Phison, and Gehon, and Tigris, and Euphrates, as, he says, Moses states. These twelve angels being mutually connected, go about into four parts, and manage the world, holding from Edem a sort of viceregal authority over the world. But they do not always continue in the same places, but move around as if in a circular dance, changing place after place, and at set times and intervals retiring to the localities subject to themselves. And when Phison holds sway over places, famine, distress, and affliction prevail in that part of the earth, for the battalion of these angels is niggardly.