Acts 14:12
And they called Barnabas, Jupiter; and Paul, Mercurius, because he was the chief speaker.
Cross-reference
Galatians 4:8
Related theme
Galatians 4:8 describes bondage to false gods — exactly the pagan mindset that led the Lycaonians to worship Paul and Barnabas.
1 Corinthians 9:6
Parallel
1 Corinthians 9:6 pairs Barnabas and Paul as fellow workers — the same duo mistaken for Zeus and Hermes.