Who ordained Paul?
St. Paul says he was made Apostle of Christ. Apparently, at one point the other Apostles agreed, so it is possible that he was ordained by them. Regardess, I am not sure there is a Paulean apostolic lineage. But all Protestants accept his teaching as legitimate, probably more than others'. He considered his primary mission preaching the gospel.
Acts 13
1 Now there were at Antioch, in the church that was there, prophets and teachers: Barnabas, and Simeon who was called Niger, and Lucius of Cyrene, and Manaen who had been brought up with Herod the tetrarch, and Saul.
2 While they were ministering to the Lord and fasting, the Holy Spirit said, "Set apart for Me Barnabas and Saul for the work to which I have called them."
3 Then, when they had fasted and prayed and laid their hands on them, they sent them away.
4 So, being sent out by the Holy Spirit, they went down to Seleucia and from there they sailed to Cyprus.
Now, I have a REALLY long post somewhere that may have gotten lost - I messaged the Religion Moderator to find it, so, please, before you respond, wait for that and read the first half over, since it brings up my theological musings on authority. :-D
***I will repeat xzin’s question:
Who ordained Paul?***
Act 9:3 And as he journeyed, he came near Damascus: and suddenly there shined round about him a light from heaven:
Act 9:4 And he fell to the earth, and heard a voice saying unto him, Saul, Saul, why persecutest thou me?
Act 9:5 And he said, Who art thou, Lord? And the Lord said, I am Jesus whom thou persecutest: [it is] hard for thee to kick against the pricks.
Need more?
Act 9:15 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: