What does Acts 13:44 mean?

‘Behold, you scoffers, and wonder, and perish; for I work a work in your days, a work which you will in no way believe, if one declares it to you.’”

So when the Jews went out of the synagogue, the Gentiles begged that these words might be preached to them the next Sabbath.

Now when the synagogue broke up, many of the Jews and of the devout proselytes followed Paul and Barnabas; who, speaking to them, urged them to continue in the grace of God.

But when the Jews saw the multitudes, they were filled with jealousy, and contradicted the things which were spoken by Paul, and blasphemed.

Paul and Barnabas spoke out boldly, and said, “It was necessary that God’s word should be spoken to you first. Since indeed you thrust it from you, and judge yourselves unworthy of eternal life, behold, we turn to the Gentiles.

For so has the Lord commanded us, saying, ‘I have set you as a light for the Gentiles, that you should bring salvation to the uttermost parts of the earth.’”