Please respond to these three posts which are outstanding (being relevant to your post):
1. If Paul's statement in Acts 13 constituted a resolve not to preach further to Jews (as you assert), why does Paul say this in Acts 18:6
But when they opposed Paul and became abusive, he shook out his clothes in protest and said to them, Your blood be on your own heads! I am innocent of it. From now on I will go to the Gentiles.?
Paul is merely talking about the Jews and Gentiles local to the area. Your assertion that Paul was not preaching to the Jews of Thessalonica because he had previously said that he was turning to the Gentiles (in Acts 13) does not hold.
2. That Paul preached to the Jews of Thessalonica is proven by following the personal pronouns.
1 Now when they had passed through Amphipolis and Apollonia, they came to Thessalonica, where was a synagogue of the Jews: 2 And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures, 3 Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ. 4 And some of them believed, and consorted with Paul and Silas; and of the devout Greeks a great multitude, and of the chief women not a few.
If the 'you' of v.3 are not the Jews, then who are the 'them' of v.4? They aren't Greeks since Paul deals with such folk separately.
Whom do you say they are?
3. Not all the Gentiles believed:
Acts 17:12, 34
As a result, many of them believed, as did also a number of prominent Greek women and many Greek men.
Some of the people became followers of Paul and believed. Among them was Dionysius, a member of the Areopagus, also a woman named Damaris, and a number of others.
How many believed Boxer - some or all?