Ezekiel 47:1-2

The man led me back to the door of the Temple, and I saw water coming out from under the doorway and flowing east. (The Temple faced east.) The water flowed down from the south side wall of the Temple and then south of the altar. The man brought me out through the outer north gate and led me around outside to the outer east gate. I found the water coming out on the south side of the gate.