I do very much appreciate you sharing these resources. It strikes me as suspect how certain terminology such as "offer of the Kingdom" is believed to somehow be reserved for only Jews. I don't believe Paul, the most educated of all the apostles in terms of the Scripture and the Law of Moses, viewed the Kingdom of God in this manner. Check out Colossians 4:10-11.
[10] Aristarchus my fellow prisoner greets you, and Mark the cousin of Barnabas (concerning whom you have received instructions--if he comes to you, welcome him), [11] and Jesus who is called Justus. These are the only men of the circumcision among my fellow workers for the kingdom of God, and they have been a comfort to me.
[10] Aristarchus my fellow prisoner greets you, and Mark the cousin of Barnabas (concerning whom you have received instructions--if he comes to you, welcome him), [11] and Jesus who is called Justus. These are the only men of the circumcision among my fellow workers for the kingdom of God, and they have been a comfort to me.
Likewise, the word tribulation does not always means Jacob's trouble or the 7 years great tribulation, it can also mean sufferings that we are undergoing now, as Paul has used 1 Thess 3:4. Someone who rightly divide the word of Truth should not use 1 Thess 3:4 to conclude that Paul is saying the Body of Christ will also be going thru Jacob's trouble.
Once you are able to understand the above point, when you then read Paul talking about the Kingdom of God, in that Colossians passage or even at the end of Acts, Acts 28, it does not mean the same Kingdom of God used by Peter and the 11, the latter refers to the physical kingdom of heaven on Earth, where Jesus will reign as King over the Jews sitting on David's throne.
Paul is not referring to that physical kingdom when he talks about the Kingdom of God. Hope this clarifies for you.