Why are there so many Apostles in this age of false Prophets.

[Dr. A. Jerome R. Butler]

Now the wall of the city had twelve foundations, and on them were the names of the twelve apostles of the Lamb. Rev. 21:14.

 

"Assuredly I say to you, that in the regeneration, when the Son of Man sits on the throne of His Glory, you who have followed me will also sit on twelve thrones, judging the twelve tribes of Israel. Matt. 19:28.

 

With only 12 thrones and 12 foundations where did all these male and female self named Apostles come from. Is the word of God incorrect or are they?????