Jupiter is the supreme god in Roman beliefs. He is the same as Zeus in Greek mythology. Jupiter was the son Saturn and husband and brother of Juno.
Jupiter (also called "Jove") was the god of destiny. His weapon was the thunderbolt. The people considered the eagle, oak tree, and olive tree holy in his worship. A temple of Jupiter stood in Rome on the Capitoline Hill. During the time when Hadrian ruled (from AD 117–138), the people built a temple of Jupiter Capitolinus on top of the ruins of the Jewish temple in Jerusalem.
During their first missionary journey, the apostles Barnabas and Paul went to Lystra. The people of Lystra thought they were gods who had come down to visit them (Acts 14:12–13). They thought Barnabas was Zeus (or Jupiter) and Paul was Hermes (or Mercury).