Gentiles
And when they opposed and reviled him, he shook out his garments and said to them, "Your blood be on your own heads! I am innocent. From now on I will go to the Gentiles." Acts 18:6 ESV https://bible.com/bible/59/act.18.6.ESV When Paul told his fellow Jews 'your blood be on your own heads', he wasn't justifying anti-Semitism. After all, he himself was Jewish. I think he must have reflected on Jesus's words not to throw pearls to pigs, or what is sacred to dogs. Jews would call Gentiles pigs and dogs. But Jesus would call Jews and Gentiles alike who oppose and revile Him pigs and dogs. This doesn't mean to say Jesus was dehumanising people, but that people dehumanise themselves by rejecting Him. Bear in mind that Paul said he would choose to be accursed if he could for the sake of his people to be saved. But because they tended to reject the gospel, he decided his ministry would be more effective if he focused on preaching to Gentiles. Interestingly