zeusRuler of Heaven and Earth. Zeus, (Jupiter, Ζεύς, Δίας) the great presiding deity of the universe, the ruler of heaven and earth, was regarded by the Greeks, first, as the god of all aërialZeus was the king of the ancient Greek gods, and the god of the sky, weather, law and order, destiny and fate. He was depicted as a regal, mature man with a sturdy fure and dark beard.