Here is the will of God for you.
See if you can find water in it .
"the will of God.......is........that you believe on Jesus, whom God sent".
Now, look at your verse....>"repent and be baptized"
Notice that there is no connection between those verses?
= Zero.
So, what is the problem?
The problem is simple........ The Acts of the Apostles, didnt stop in Acts 2..... but you did.
In Acts 2, you have Peter, who does not yet have the revelation of the Grace of God that Jesus gave to PAUL, that Paul calls "my gospel".....as this is the '"Gospel of the Grace of God"........its the one that Paul says is the only.....and if you preach another, such as "water saves"...or "born again of water".....then you are this..... Galatians 1:8.
Listen....
Acts has 28 chapters in it. Its a epistle of progressive revelation, that starts with Christ's death and resurrection, and continues to Acts 28 where Paul tells the Jews, the House of Israel....>"im taking the Gospel to the GENTILES"
See that?
Look closely........>Peter is preaching only to JEWs in Acts 2, and by the time the Epistle of Acts ends 28 chapters later, which is about 30 yrs of literal time passed.....Paul is taking the Gospel to the GENTILES, = away from the JEWS......as a Nation.
That is your "apostle to the Gentiles".......in the "time of the Gentiles", and that is NOT Peter, in ACTS 2.
So, your issue, is that you have not been taught that the bible, the NT, is a progressive revelation.....its keeps changing, as God keeps bringing in the new rules......like the NEW Covenant and the NEW Testament.
And in Acts 2, Peter does not have Paul's revelation that is : "The Gospel of the Grace of God".
He does not have this revelation yet.
See, this revelation was given to Paul by JESUS, as he is the "chosen vessel" for this "time of the gentiles".
Paul came later then the original 12 apostles........and so did that GOSPEL, that Paul defines as : """MY GOSPEL.....""
Peter didnt have this knowledge in Acts 2, and that is why hes talking about John the Baptist's water baptism.
See, the "repent and be baptized", is what John the Baptist was telling the Jews....and that is all that Peter knew to preach, in Acts 2 when he is only talking to JEWS.
SEE IT ????
LATER, he is not preaching that water baptism message, as Paul came to all the Apostles, later, and gave them the revelation of the "Gospel of the Grace of God".....that Paul defines as "MY Gospel". Romans 16:25.
Now.....What is the short version, of this teaching im giving you?
Its this....when an apostle does not have a certain revelation, then they can't teach it or preach it.
And that is Peter in Acts 2.
Later, he has Paul's Gospel.
You still dont.
Wake up !
Paul taught there is only ONE gospel just as he taught there is only ONE Holy Spirit.
If someone says there is more than one gospel, then one can also argue there is more than one Holy Spirit.
Ephesians 4:4-5
There is one body and one Spirit, even as ye are called in one hope of your calling
One Lord, one faith, one baptism.
The one faith is the gospel. More than one gospel then one can argue there is more than one Lord.
Jude 3
Beloved when I gave all diligence to write unto you of the common salvation, it was needful for me to write unto you, and exhort you that ye should earnestly contend for the
faith( Ephesians 4:5 faith) which was once delivered unto the saints.
The faith is the gospel of Christ.
Now, the great commission Jesus gave in Mark 16:15-16 was also told in Matthew 28:19 and Luke 24:47.
Those verses are the great commission of Jesus.
Before the great commission Jesus had a limited commission,
This commission was for the Jews only,
Matthew 10:5-6
These twelve Jesus sent forth and commanded them saying,
Go not into the way of the gentiles, and into any city of the Samaritans enter ye not: But go rather to the lost sheep of the house of Isreal.
Later Jesus gives the great commission,
Mark 16:15-16
And He said unto them, Go ye into all the world and preach the gospel to EVERY CREATURE,
He that believeth and is baptized shall be saved; but he that believeth not shall be danmed.
Jesus was recorded in Matthew 28:19 Telling his disciples to
Go ye therefore and teach ALL NATIONS, baptizing them in the name of the Father and of the Son and of the Holy Spirit.
All nations includes gentiles!
This proves Jesus gospel is the same gospel Paul preached.
For Paul preached the gospel and baptized,
Acts 16:31-34
Paul preached the gospel in Acts 19:1-7 they were taught by Paul to believe and be water baptized.
Just as Peter preached to the Jews on Penetcost, Acts 2:38.
Peter preached the same gospel to a gentile Cornelius in Acts 10:44-48,
47 Can any man forbid water, that these should not be baptized, which have received the Holy Spirit as we?
48 And he commanded them to be baptized...
Paul was taught the gospel by God through Ananias and was baptized Acts 22:16.
Paul taught the Corinthian church the gospel and baptized some of them but not all because they were perverting Jesus' baptism by giving men the glory instead of Jesus.
1Corinthians 1:14
I think God i baptized none of you except Crispus and Gaius.
There are gentiles in the Corinthian church as well as jews.
Paul taught the same gospel Jesus taught in Mark 16:15-16.
Both jew and gentile are saved the same way by the one gospel of Christ.
1Corinthians 1:16
And I baptized also the household of Stephanas: besides, I know not whether I baptized any other.
Now look Paul taught the gospel to both Jews and gentiles,
Acts 18:4
And he reasoned in the synagogue every Sabbath and persuaded the Jews and the
Greeks.
Paul was teaching the gospel to both Jews and gentiles before he said he was done trying to convince the Jews, that he would now only teach the gentiles.
Acts 18:6
And when they opposed themselves and blasphemed, he shook his raiment and said unto them, Your blood be upon your own heads; I am clean: from henceforth I will go unto the gentiles.
There is one gospel of Jesus Christ, Ephesians 4:5