I’m sure you know your scripture better than me. But Paul is considered one of the most vigorous prosecuters of the jews. If you read his sotry in Acts, it describes his preaching to the Jews at first. But after being rejected, he brings his message more to the non-Jews. (I do not have Acts with me, have not read it, and my information comes from other sources written about Paul). From what I have read, his preaching was almost universaly rejected by jewish communites both in Turkey and Greece. (See "The Jews in Their Land in the Talmudic Age, by Alon );
Also in 2 Cor. we see Paul saying “Five times I have had at the hands of hte Jews the forty lashes minus one. Three times I have been beaten with rods; once I was sotned.”
He rejected the Jews for the Gentiles. He considered the Jews willfully blind to spiritual reality. (Acts 28:25). He said Since you [Jews] thrust it [the Gospel of Christ] from you, and judge yourselves unworthy of eternal life, behold, we trun to the Gentiles."(Acts 13:46).
There’s more but that gives you the jist.