Following the Cleromancy (casting of lots), sky is ruled by Anu, earth by Enlil, and the freshwater sea by Enki.
In the text Enki and Ninhursag he was described as the consort of Ninsutu, one of the deities born to relieve the illness of Enki.
Abzu (or Apsû) fathered upon Tiamat the elder deities Lahmu and Lahamu (masc. the "hairy"), a title given to the gatekeepers at Enki's Abzu/E'engurra-temple in Eridu.