The celebrated Romanian scholar of religion Mircea Eliade suggests a linguistic relation among the Indo-European noun deiwos (“sky”) and terms denoting a deity (Lat. deus, Skt. deva, Iran div as well as names of the primary gods: Dyaus, Zeus and Jupiter).
Eliade and G. Parrinder suggest that the idea of deity is usually related to transcendence and light, this often having paternal connotations—e.g. God “the Father.”
Non-Christian examples of a paternal theme relating to a deity are found in the Indian Dyauspitar, Greek Zeus Pater, Latin Jupiter, Scythian Zeus-Papaios and the Thaco-Phrygian Zeus-Pappos.