Please drop the attitude and listen. You are so convinced that Peter was speaking about water baptism that you aren't hearing other voices, who are trying to help you see the truth of the matter. Consider Matthew 3:11, where John tells the people that he baptizes with water, but Jesus will baptize with the Holy Spirit and Fire. This is our first clue that being baptized in the name of Jesus Christ is not immersion into water.
Next, consider Acts 19:3-4, wherein we come to understand that being baptized "into John" means being immersed in his teaching. The disciples were immersed in John's teaching, which is why Paul can remind them that John anticipated the coming of the messiah, which turned out to be Jesus the Christ.
Then consider Matthew 28:16-20, where Jesus instructs the Apostles to baptize in the name of the Father, the Son and the Holy Spirit. He is not giving the apostles a formulaic incantation suggesting that they must mouth those words. No. Instead, we baptize in the name of the Father, the son and the Holy Spirit because these three are the teachers. Just as being baptized into John indicates immersion in John's teaching, being baptized in the name of the Father, the Son, and the Holy Spirit indicates being immersed in their teaching.
Then consider 1Corinthians 1:10-17 where Paul is critical of the disunity and factions that have developed in that city. Here we see the great misunderstanding that developed concerning the rite of baptism. It was generally understood that those who were baptized by John, were John's disciples and dedicated to his teaching. That is, baptism into John is immersion in his teaching. Given this understanding of baptism, Jesus warned the apostles to baptize in his name, not in their own name. For instance, those whom Peter baptized were not to be Peter's disciples; they are to be Jesus' disciples. Those whom Apollos baptized were not Apollos' disciples; they were supposed to be Jesus disciples. But the Corinthians misunderstood, thinking themselves to be the disciples of the one who baptized them one would say, I am of Paul,” and “I of Apollos,” and “I of Cephas,” and “I of Christ.”
What is the point of all this? John baptized with water, and so did the apostles. But Jesus never baptized with water. Instead, Jesus baptizes with the Holy Spirit and with Fire. When John baptized in water, it was understood that this act was the initiation into an immersion into John's teaching. However, when the Apostles baptized in water, it was understood that this act was the initiation into an immersion into the teaching of the Father, the Son, and the Holy Spirit. We are not immersed into the teaching of the one who baptized us; we become disciples of Jesus Christ.
But the true baptism, the one true baptism is the indwelling of the Holy Spirit. Paul hints at this in his epistle to the Ephesians, chapter one, where he points out that after the Ephesians believed, they were sealed with the Holy Spirit of promise. In his letter to the Galatians he talks about the fruit of the Spirit. In his epistle to the Romans he speaks about the mind set on the Spirit. Romans 8:9-11
However, you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. But if anyone does not have the Spirit of Christ, he does not belong to Him. If Christ is in you, though the body is dead because of sin, yet the spirit is alive because of righteousness. But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ Jesus from the dead will also give life to your mortal bodies through His Spirit who dwells in you.
