James P. Allen on the Four Sons of Horus "representing the cardinal directions"

  

Horus’s children (msw ḥrw). The four gods Hapi, Imseti, Duamutef, and Qebehsenuef, representing the cardinal directions. (James P. Allen, The Ancient Egyptian Pyramid Texts [Writings from the Ancient World 23; Atlanta, Ga.: Society of Biblical Literature, 2005], 433)