The qualifications for an Apostle are found in Acts 1:21-22........where those Scriptures discusses the selection of a new apostle to replace Judas Iscariot, emphasizing the importance of being a witness to Jesus' ministry and resurrection.
"So one of the men who have accompanied us during all the time that the Lord Jesus went in and out among us,
beginning from the baptism of John until the day when he was taken up from us—one of these men must become with us a witness to his resurrection.”
The CONTEXT here is that Peter is explaining to the 120 Jesus-followers in the upper room that, before the Holy Spirit comes, they need to find a replacement for Judas Iscariot.
Peter sets the clear and easy to understand qualifications for Judas' replacement.
1. Jesus had said the apostles will be His "witnesses" (
Acts 1:8), so they need someone who has witnessed Jesus. Throughout Jesus' three-year ministry, the Twelve disciples followed Him wherever He went, but they usually weren't alone. Regularly, crowds joined them, even when they weren't wanted. Some people would have stayed as long as they could, traveling with Jesus like groupies traveling with their favorite band.
Peter's first requirement is that Judas' replacement was a part of this crowd.
2. He goes on to say the man must have been with them from the day of Jesus' baptism by John the Baptist until the ascension.
Those two Bible qualifications completely rule out anyone today who thinks that they are an Apostle.
It should be noted so as to eliminate any arguments that while Paul never claimed to be included among the original twelve, believers have recognized that Jesus appointed him as His special apostle to the Gentiles which is what we see i
n Gal. 1:1Galatians 1:1; 1 Corth. 9:1 Acts 26:16-18.1.
Also, just so that we are all on the same page and we do not get caught up in semantics, there are others in the early church referred to as “apostles” in Acts 14:4 14, Rom. 16:7 & 1 Thess 2:6, but they were called Apostles only in the sense that they were appointed, authorized, and sent by churches on special errands or by the Apostles themselves.
These individuals bore the title “apostle” in a limited sense and did not possess all the qualifications of apostleship that the original twelve and Paul did.
Also, not matter how hard we work at it and not matter what we "feel or want", there is absolutly No biblical evidence that exists to indicate that these thirteen apostles were replaced when they died.
According to Acts 12:1-2 Jesus appointed the TWELLVE apostles to do the founding work of the Church, and foundations only need to be laid once. After the apostles’ deaths, other offices besides apostleship,
not requiring an eyewitness relationship with Jesus, would carry on the work which would include today.