Paul's Gospel To Us, Only Came After Israel Fell and Lost Their Special Access to God
There is a big difference between the "rise of Israel" and the "fall of Israel". Before Israel's fall, the only way that Gentiles could come to God, was to bless Israel during their RISE (Genesis 12:3). 

Fortunately for us, when Israel fell, and their gospel thus became ineffective (Matthew 12:31-32; Acts 7:51-60), Paul then claimed 1 Corinthians 9:17... "a dispensation of the gospel is committed unto me.' and Galatians 1:11-12 But I certify you, brethren, that the gospel which was preached of me is not after man. For I neither received it of man, neither was I taught it, but by the REVELATION of Jesus Christ." You can REMIND someone of something that has already been told, but you can only REVEAL something that is NEW. Paul received the gospel which was preached of him, by REVELATION, it was REVEALED to him, not reminded to him. The gospel of Christ that was only REVEALED to Paul, WAS NEW, with entirely different provisions than the "gospel of the kingdom" given only to Israel. Even the NAMES of the gospels, are different. Read how different the provisions of those 2 gospels are in: (1) the gospel of the kingdom in Mark 1:14-15; (2) the gospel of Christ in 1 Corinthians 15:1-4. 

Believe the only gospel that still works today, the gospel of Christ that Paul preached in: 
1 Corinthians 15:1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; 
1 Corinthians 15:2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain. 
1 Corinthians 15:3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; 
1 Corinthians 15:4 And that he was buried, and that he rose again the third day according to the scriptures: 

Adding to it, shows that one does NOT BELIEVE the gospel of Christ as given by Christ to Paul for us.
Mike McGlathery