Final answer:
The main differences between Paul's approach to his audience in Acts 13 and Acts 17 can be seen in their locations, the audience's background, and the content of Paul's message.
Step-by-step explanation:
The main differences between Paul's approach to his audience in Acts 13 and Acts 17 can be seen in their locations, the audience's background, and the content of Paul's message. In Acts 13, Paul is in the synagogue in Antioch of Pisidia, addressing a Jewish audience.
He starts by recounting their history and then presents Jesus as the promised Messiah. In Acts 17, Paul is in Athens, addressing a Gentile audience. He begins by observing their religious devotion and uses that as a starting point to introduce the concept of the unknown God and the message of Jesus.