Khnum, the god of the source of the river

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Khnum (Khnemu, Khenmu, Khenmew, Chnum) was one of the most ancient gods of Egypt, whose worship is thought to have been popular as early as the Predynastic Period. References from the Pyramid Texts of Unas confirm that his worship was long established even at that early stage and the Old Kingdom pharaoh Khufu (the builder of the Great Pyramid) was actually called “Khnum-Khufu” (“Khnum is his Protector”). However, it seems that the cult of Ra (or Re) rose to dominance at that time and Khnum was pushed to the sidelines as Khufu’s son and grandson (Khaf-Re and Menkau-Re) both took names honouring Ra.

https://ancientegyptonline.co.uk/khnum/