Speculative your honor..... OVERRULED!
These sorts of PURE speculation and opinion bare no weight.
The promise of God was that all nations would be blessed THROUGH Israel and NOT by their FALL. That was something revealed to Paul.
Why would I "forget" this? And I don't know what the remainder of your comment is getting at.
You don't understand the NT because you have 'church' pitted against 'Israel' and you are protecting the latter because you want the Bible to make plain sense and because of so many passages that seem to 'need' fulfillment.
The NT says the things promised to Israel (and the nations) are fulfilled in the event of Christ. So it is neither through Israel (doing well) nor its fall. The forgiveness of sins is what Peter was talking about.
I now know that you truly do not understand the dynamics of the NT background that is in Acts and Galatians. Ie, the correction of Peter. Peter did know what was right but was pressured by some of the Jerusalem leaders to ignore the world-wide promises, even though he had preached it in his first messages. He had to be corrected by two parties, so he was really having trouble! Both God and Paul.
There is no secret language in the apostles sermons that is meant to keep separate promises for Israel for separate reasons intact. 'whatever God promised to the fathers has been fulfilled for you their children in the resurrection of Christ' Acts 13.
It sounds like you need to immerse yourself in the sermon there until it makes sense and until the
reactions by the opposition makes sense too. You just said two days ago that Paul's use of Isaiah about David's promises and their transfer was a novelty I was engaging in. Afraid not. If that is not there, the sermon makes no sense.
It is the one sample, official, unhurried apostolic sermon that has no 'issue' to deal with at hand.
The reason the resurrection of Christ has the astounding place and value given it in this sermon is that it proves that the promises are available to all. His indestructible righteousness is offered to all mankind for their debt of sin, and God raised him in approval of his work for that.
Then you need to come to terms with 13:47 using Is 49. This is the classic example of how the NT uses Isaiah to refer to Christ not Israel, or only to Israel insofar as they enter into Christ's mission. They are light to the nations if they are in His light, and the purpose is to get the message of salvation to the ends of the earth. It is the mission of the Gospel. Once again there is nothing about the territory or theocracy of Israel. it has no purpose anymore and there is no reference anywhere in the NT to it because of the mission.