Let's see who is being addressed in this:
Acts 2:36-39
36 Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?
38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
39 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
None of that applied to Gentiles because Gentiles were outside the commonwealth of Israel because of their being on the other side of the middle wall of partition, without God, without Christ and without hope in the world. So, no. Repentance coupled with water baptism for the remission of sins, that was for Israel, not Gentiles who were still outside the commonwealth of Israel after the cross but before the fall of Israel (and I'm not talking about 70 AD). Paul at no time ever commanded water baptism for the remission of sins as did the twelve to Israel.
MM
Paul never told anyone after the book of acts they needed to be baptized.
Lets look at who Paul was talking to,
Look who the letters are addressed to,
1 Corinthians,
1 Paul called to be an apostle of Jesus Christ through the will of God, and Sosthenes our brother,
2
Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called to be saints, with all that in every place call upon the name of Jesus Christ our Lord, both their's and our's:
2 Corinthians,
1 Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother,
unto the church of God which is at Corinth, with all the saints which are in all Achaia:
Romans,
1 Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,
2 (Which he had promised afore by his prophets in the holy scriptures,)
3 Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh;
4 And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:
5 By whom we have received grace and apostleship, for obedience to the faith among all nations, for his name:
6 Among whom are ye also the called of Jesus Christ:
7
To all that be in Rome, beloved of God, called to be saints: Grace to you and peace from God our Father, and the Lord Jesus Christ.
Galatians,
1 Paul, an apostle, (not of men, neither by man, but by Jesus Christ, and God the Father, who raised him from the dead

2 And all the brethren which are with me,
unto the churches of Galatia:
Ephesians,
1 Paul, an apostle of Jesus Christ by the will of God,
to the saints which are at Ephesus, and to the faithful in Christ Jesus:
Philippians,
1 Paul and Timotheus, the servants of Jesus Christ,
to all the saints in Christ Jesus which are at Philippi, with the bishops and deacons:
Colossians,
1 Paul, an apostle of Jesus Christ by the will of God, and Timotheus our brother,
2
To the saints and faithful brethren in Christ which are at Colosse: Grace be unto you, and peace, from God our Father and the Lord Jesus Christ.
1 Thessalonians,
1 Paul, and Silvanus, and Timotheus,
unto the church of the Thessalonians which is in God the Father and in the Lord Jesus Christ: Grace be unto you, and peace, from God our Father, and the Lord Jesus Christ.
2 Thessalonians,
1 Paul, and Silvanus, and Timotheus,
unto the church of the Thessalonians in God our Father and the Lord Jesus Christ:
All letters after the book of Thessalonians had nothing to with Paul’s ministry to churches.
Yep NOT THE UNSAVED but to churches who already been saved that is why you will not see Paul tell anyone how to be saved.