Was Paul preaching the kingdom and the gospel at the same time? Do the listeners have a choice of waiting for the kingdom or joining the church?
Acts 28:23 When they had set a day for Paul, they came to him at his lodging in large numbers; and he was explaining to them by solemnly testifying about the kingdom of God and trying to persuade them concerning Jesus, from both the Law of Moses and from the Prophets, from morning until evening.
Early Modern English often follows the at times reverse order of things it is translating.
That passage, as with many descriptions not only of Paul's but of the Lord's utterances in Matt. - John, as well as in Paul's writings, has this element in it.
It speaks of what Paul was saying and doing in the reverse order of what he was doing said things in.
Actually, he was proving Christ from the Law and the Prophets, followed by that aspect of the kingdom of God that he was raised up to preach, in light of Israel's rejection of THEIR "salvation of God."
Acts 28 is a third, and final summary of Acts 13.
The second one being...
Acts 18:4 And he reasoned in the synagogue every sabbath, and persuaded the Jews and the Greeks. 18:5 And when Silas and Timotheus were come from Macedonia, Paul was pressed in the spirit, and testified to the Jews that Jesus was Christ. 18:6 And when they opposed themselves, and blasphemed, he shook his raiment, and said unto them, Your blood be upon your own heads; I am clean: from henceforth I will go unto the Gentiles.
You see all that in verse 6?
That is "straight street" (to the point) Romans 9:19's scope and context - "Thou wilt say then unto me, Why doth he yet find fault? For who hath resisted his will?"
Anywhere one reads words and or actions attributed to Paul by Luke in Acts (the writer of Acts) one must pause to take all said words throughout Acts as one, and this, in light of Paul's words in his own writings about it all.
Note what little Luke reports along a similar line as to what all Paul only appears to have preached in Acts 17, in contrast to, and thus, in the much needed reliance on, all that Paul himself asserts in 1st and 2nd Thessalonians, he had actually shared with those in Acts 17.
Here is another - Did Paul preach Acts 3's message?
Again - not according to him in Romans 9-11 11; nor according to Peter, for that matter, in 2 Peter 3.
Where Peter had preached a promised CONDITIONAL return of the Lord to Israel in Acts 3, Paul later asserts a TEMPORARY delay of the Lord's wrath (on God's part in His LONGSUFFERING) of said return and WHY, in Romans 9-11.
Peter even relates in 2 Peter 3 of their having learned from Paul, of said delay on God's part in His LONGSUFFERING.