Probably lots more than just 4 "theories".
AND Totally unimportant anyway. The MATURE CHURCH of Ephesians (which isn't even on the radar yet) has "Apostles". All the Hoopla about "Apostles" (which just means "Messenger"), is nothing more than "Theology". ALL God's Chilluns gots "Theologies".
what did the truth say though about his apostles …..the son of God ?
“
Ye are they which have continued with me in my temptations. And
I appoint unto you a kingdom, as my Father hath appointed unto me; that ye may eat and drink at my table in my kingdom, and sit on thrones judging the twelve tribes of Israel.”
Luke 22:28-30 KJV
“And 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.”
Matthew 19:28 KJV
“I have manifested thy name unto the men which thou gavest me out of the world: thine they were, and thou gavest them me; and they have kept thy word. For I have given unto them the words which thou gavest me; and they have received them, and have known surely that I came out from thee, and they have believed that thou didst send me. I pray for them: I pray not for the world, but for them which thou hast given me; for they are thine. And now I am no more in the world, but these are in the world, and I come to thee. Holy Father, keep through thine own name those whom thou hast given me, that they may be one, as we are. While I was with them in the world, I kept them in thy name: those that thou gavest me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled. And now come I to thee; and these things I speak in the world, that they might have my joy fulfilled in themselves. I have given them thy word; and the world hath hated them, because they are not of the world, even as I am not of the world. They are not of the world, even as I am not of the world. Sanctify them through thy truth: thy word is truth. As thou hast sent me into the world, even so have I also sent them into the world. Neither pray I for these alone, but for them also which shall believe on me through their word;”
John 17:6, 8-9, 11-14, 16-18, 20
The children of God are those in the son who hear him and believe by his word
Paul
“But the Lord said unto him, Go thy way: for
he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel: for I will shew him how great things he must suffer for my name's sake.”
Acts 9:15-16 KJV
“and said unto them, Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day: and that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem. And ye are witnesses of these things.”
Luke 24:46-48 KJV
the apostles were all witness and appointed by the risen lord to witness the things written in the Bible ……the things we read in the Bible were witnessed by those same men he appoonted red to do so it’s why we have the Bible it’s the witness of those things they lived and preached