Bang on the money!
I’m not quite sure what you percieved Paidion’s apparently implied assertion to be, but Paul certainly after appealing to Israel has a changed focus toward bringing the Gentiles into the early Diasporic community. As I have noted time and again the early church among whom many a Gentile came to find Christ, was inherently Hebraic wherein the gospel gained early traction and growth; again please reconsider the evidence…
Jn 7:35 Then the Jews said among themselves, “Where does He intend to go that we shall not find Him? Does He intend to go to the Dispersion among the Greeks and teach the Greeks?
Acts 15:21 For Moses has had throughout many generations those who preach him in every city, being read in the synagogues every Sabbath.”
Acts 2:5 And there were dwelling in Jerusalem Jews, devout men from every nation under heaven. — as per verses 8—11
Acts 18:2, 9-10 And he found a certain Jew named Aquila, born in Pontus, who had recently come from Italy with his wife Priscilla… Now the Lord spoke to Paul in the night by a vision, “Do not be afraid, but speak, and do not keep silent; for I am with you, and no one will attack you to hurt you; for I have many people in this city.” This was pre-Corinthian epistles… consider verses 4—8
1Pet 1:1 To the pilgrims of the Dispersion in Pontus, Galatia, Cappadocia, Asia, and Bithynia,…
Jas 1:1 James, a bond-servant of God and of the Lord Jesus Christ, to the twelve tribes which are scattered abroad: Greetings.
Join the dots… ancient Israel was the seedbed of the burgeoning church… wherein certain Gentiles then came to faith in Christ. Check out the reaction in Antioch…
Acts 13:42, 46-48 So when the Jews went out of the synagogue, the Gentiles begged that these words might be preached to them the next Sabbath. … Then Paul and Barnabas grew bold and said, “It was necessary that the word of God should be spoken to you first; but since you reject it, and judge yourselves unworthy of everlasting life, behold, we turn to the Gentiles. For so the Lord has commanded us: ‘I have set you as a light to the Gentiles, that you should be for salvation to the ends of the earth.’ ” Now when the Gentiles heard this, they were glad and glorified the word of the Lord. And as many as had been appointed to eternal life believed.
I trust this textual evidence to my point is clear enough.