#1...You dont know that, and I dont know that.
#2...How can it be classified "rebaptized" if that baptism doesn't have the same purpose as like what John did? To my mind, saying he "rebaptized" means he did exactly like John, and for the same purpose...John's baptism was for the remission of sins...Paul, as far as I can tell, never uttered a word about baptism for the remission of sins. But that it symbolized the death, burial and resurrection of our Lord Jesus Christ.
I could be wrong...but my take as I said above in my previous post is to me, it is a symbol or I identify myself with Jesus. I'm not ashamed of it. Like my wedding ring, I identify with my wife....it doesn't mean my wedding ring means Im married...it symbolizes I am....
Act 19:1-7 KJV And it came to pass, that, while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples, (2) He said unto them, Have ye received the Holy Ghost since ye believed? And they said unto him, We have not so much as heard whether there be any Holy Ghost. (3) And he said unto them, Unto what then were ye baptized? And they said, Unto John's baptism. (4) Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus. (5) When they heard this, they were baptized in the name of the Lord Jesus. (6) And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied. (7) And all the men were about twelve.
The THEY in Verse 5 refers to John's hearers responding to John and NOT these TWELVE responding to Paul.
Water baptism has NO place in the body of Christ and Paul makes that clear by saying that there is ONE baptism in the body of Christ.
Eph 4:3-6 KJV Endeavouring to keep the unity of the Spirit in the bond of peace. (4) There is one body, and one Spirit, even as ye are called in one hope of your calling; (5) One Lord, one faith, one baptism, (6) One God and Father of all, who is above all, and through all, and in you all.
That
ONE baptism is NOT water... it is the baptism BY the Holy Spirit INTO the body of Christ.
1Co 12:12-13 KJV For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ. (13) For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.