I’m very familiar with Paul’s story. It doesn’t matter when He received his commission, the point is he wasn’t an appointed “elder.” He was chosen by Christ Himself to be one of the Apostles:2 Cor 11:5 “For I consider myself not in the least inferior to the most eminent apostles.”
2 Cor 12:11 "I have become foolish; you yourselves compelled me. Actually I should have been commended by you, for in no respect was I inferior to the most eminent apostles, even though I am a nobody"No other Apostle labored as much as he:2 Cor 11:22-23 "Are they Hebrews? So am I. Are they Israelites? So am I. Are they descendants of Abraham? So am I. Are they servants of Christ?–I speak as if insane–I more so; in far more labors, in far more imprisonments, beaten times without number, often in danger of death…"You, like the Corinthians try to down grade his position as an Apostle, but you, like the Corinthians, are indebted to Paul’s Apostleship, more than any of the others who were appointed prior to him.
See below-
Even here Paul discusses how foolish he was and the importance of being commended by the Apostles at the time as the Apostles compelled him to do so.
"I have become foolish; you yourselves compelled me. Actually I should have been commended by you, **for in no respect was I inferior to the most eminent apostles
4 Therefore we were buried with Him through baptism into death, that just as Christ was raised from the dead by the glory of the Father, even so we also should walk in newness of life. ( Baptism)
He was given a mission and that led to him becoming an Apostle by baptism. I agree Paul was made an Apostle through Christ but was not even a deciple till he was baptised and accepted by the Apostles.
“they appointed those who have already been mentioned and afterwards added the further provision that, if they should die, other approved men should succeed to their ministry.” (Epistle to the Corinthians 42:4-5, 44:1-3 [A.D. 80]).
Hegesippus
When I had come to Rome, I [visited] Anicetus, whose deacon was Eleutherus. And after Anicetus [died], Soter succeeded, and after him Eleutherus. In each succession and in each city there is a continuance of that which is proclaimed by the Law, the Prophets, and the Lord" (Memoirs 4:22:1 [ca. A.D. 180]).
“[In Philippians 1:1 Paul says,] ‘To the co-bishops and deacons.’ What does this mean? Were there plural bishops of some city? Certainly not! It is the presbyters that [Paul] calls by this title; for these titles were then interchangeable, and the bishop is even called a deacon. That is why, when writing to Timothy, he says, ‘Fulfill your diaconate’ [2 Tim. 4:5], although Timothy was then a bishop. That he was in fact a bishop is clear when Paul says to him, ‘Lay hands on no man lightly’ [1 Tim. 5:22], and again, ‘Which was given you with the laying on of hands of the presbytery’ [1 Tim. 4:14], and presbyters would not have ordained a bishop” (Homilies on the Epistle to the Philippians 1:1 [A.D. 398]).
Then the reverence of the law is chanted, and the grace of the prophets is known, and the faith of the Gospels is established, and the Tradition of the apostles is preserved, and the grace of the Church exults. (Letter to the Corinthians 11 [A.D. 80])
To make sure that the apostolic tradition would be passed down after the deaths of the apostles, Paul told Timothy, “[W]hat you have heard from me before many witnesses entrust to faithful men who will be able to teach others also” (2 Tim. 2:2). In this passage he refers to the first four generations of apostolic succession—his own generation, Timothy’s generation, the generation Timothy will teach, and the generation they in turn will teach.
Among the apostles there were two groups. The first consisted of the Twelve, who witnessed the whole of Christ’s earthly ministry from his baptism to his Ascension (Acts 1:21-26). The second group of apostles, including Paul and Barnabas (Acts 14:14), was not bound by this condition. Thus Paul had seen and been commissioned as an apostle by the risen Christ (1 Cor. 9:1, Gal. 1:1), though he had not been a disciple of Jesus during his earthly ministry (Acts 9, 1 Cor. 15:8).
Till Baptism and acceptance by the Apostles otherwise No one would listen to him.
Paul is part of the 2nd generation of Apostles not of the original 12
6 After that He appeared to more than five hundred brethren at one time, most of whom remain until now, but some have fallen asleep; 7 then He appeared to James, then to all the apostles; 8 and last of all, as to one untimely born, He appeared to me also. 9 For I am the least of the apostles, and not fit to be called an apostle, because I persecuted the church of God. 10 But by the grace of God I am what I am, and His grace toward me did not prove vain; but I labored even more than all of them, yet not I, but the grace of God with me.
Romans 6:4 Paul writes
4 Therefore we were buried with Him through baptism into death, that just as Christ was raised from the dead by the glory of the Father, even so we also should walk in newness of life.
(baptism)
Paul was baptised and made new through the Holy Spirit by the Apostles it is in your own findings that you can see this.
though he had not been a disciple of Jesus during his earthly ministry (Acts 9, 1 Cor. 15:8).
For it was not sanctioned and he was not baptised in the name of the Father, Son, and Holy Spirit.**