See Notes 1 and 2. Contrast the two towns of Joppa and Caesarea, and the two men and Cornelius. The scene is now set for the Gentiles to receive the gospel.
Whose intervention was necessary to bring it about?
Whom ought we to thank for our reception of the gospel?
How did God teach new truth to both Peter and Cornelius?
Notice the prejudice that had to be removed and the obedience that was shown.
Are you also willing to obey God when he teaches you something new and different from your natural prejudice or preference?