Surely you jest with your question.
Obviously the 12 men were apostles and we are all aware of this. However, and I may be wrong, I do not know that the NT says there were only 12. The twelve were special, that is a certainty. Also, we do not know that after his resurrection that Jesus did not include others in his inner circle as apostles.
There may be other writings from that time that speak of other disciples. I am not sure about that. However, when the canon was set it was set by men and it is possible they did not include some books that were inspired, but for political or cultural reasons the priests, monks, etc. did not include them as they wanted women "put in their place" and in their opinion women were not to be considered in any as equal to men.
That might make a good thread for general discussion.
Well let's ee:
Revelation 21:14 And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb
This verse apparently says the twelve apostles of the lamb, their names will be on the twelve foundations of the New Jerusalem. So will Junia be there? Will it Matthias or Paul.
12 tribes, twelve apostles chosen by Christ 11 of which became apostles and Paul the 12th.
Ishmael even had 12 princes.
Matthew 19:27 Then answered Peter and said unto him, Behold, we have forsaken all, and followed thee; what shall we have therefore?
28And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel
Which 12 will judge the 12 tribes of Israel.
Scripture is very clear their are and have only been 12 Apostles of which Paul became the 12th and there is no scriptural back up that says that Junia nor Andonicus were apostles it says they were marked by or of note amoung them.
1 Corinthians 9:1 Am I am not an apostle? am I not free? have I not seen Jesus Christ our Lord? are not ye my work in the Lord?
We don't know if they even met this qualification.
Notice Paul said the proof of his Apostleship was that he had seen Jesus Christ our Lord, He had see the risen Lord on the road to Damascus. Not one person today can make that claim and therefore no one qualifies as an Apostle, because no one in our time has seen the Risen Lord. For He is seated at the right hand of the Father making intercession for us and waiting on the Father to make His enemies His footstool.