Zeus is a god.
Jupiter , also Jove ( Iūpiter [ ˈjuːpɪtɛr ] or Iuppiter [ ˈjʊppɪtɛr ] , gen. Iovis [ ˈjɔwɪs ] ) , is the god of sky and thunder and king of the gods in Ancient Roman religion and mythology . Zeus . He was respected as an allfather who was chief of the gods and assigned the others to their roles : `` Even the gods who are not his natural children address him as Father , and all the gods rise in his presence . '' He was equated with many foreign weather gods , permitting Pausanias to observe `` That Zeus is king in heaven is a saying common to all men '' .