To supplement my response to you, the process of being saved according to scripture is
1. Belief and faith
2. Confession of belief as did the Ethiopian eunuch in Acts 8
3. Repentance as dis the Jews on the day of Pentecost in Acts 2:38
4. Baptism also per Acts 2:38
The Lord then adds you to his body which is the church per Acts 2:47, at which point you become a child of God, a Christian, and a member of the church.
No record of anyone being saved by reciting a prayer and asking for forgiveness.
Repentance actually 'precedes' saving belief/faith in Christ:
Matthew 21:32 - For John came to you to show you the way of righteousness, and you
did not believe him, but the tax collectors and the prostitutes did. And even after you saw this, you did not
repent and believe him. *Notice the order.
Mark 1:15 - The time is fulfilled, and the kingdom of God is at hand:
repent and believe the gospel. *Notice the order.
Acts 20:21 - testifying both to Jews and to Greeks of
repentance toward God and of faith in our Lord Jesus Christ. *Notice the order.
Confessing with our mouth that Jesus is Lord and believing in our heart that God raised Him from the dead are
not two separate steps to salvation but are chronologically together. Confession here is an expression of faith and not a work for salvation in a series of steps.
Romans 10:8 - But what does it say?
"The word is near you, in your mouth and in your heart" (TOGETHER) that is, the
word of faith which we are preaching, (notice the reverse order from verse 9-10) - that if you confess with your mouth that Jesus is Lord, and believe in your heart that God raised Him from the dead, you will be saved; 10 for with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.
Confess/believe; believe/confess.
1 Corinthians 12:3 - Therefore I make known to you that no one speaking by the Spirit of God calls Jesus accursed, and
no one can say that Jesus is Lord except BY the Holy Spirit. There is divine influence or direct operation of the Holy Spirit in the heart of a person when confessing Jesus as Lord. This confession is not just a simple acknowledgment that Jesus is the Lord (even the demons believe that), but is a deep, personal conviction from the heart that Jesus is that person's Lord and Savior.
In Acts 2:38, "for the remission of sins" does not refer back to both clauses, "you all repent" and "each one of you be baptized," but refers only to the first. Peter is saying "repent unto the remission of your sins," the same as in Acts 3:19. The clause "each one of you be baptized" is parenthetical. This is exactly what Acts 3:19 teaches except that Peter omits the parenthesis.
*Also compare the fact that these Gentiles in Acts 10:45 received
the gift of the Holy Spirit (compare with Acts 2:38 -
the gift of the Holy Spirit) and this was BEFORE water baptism. (Acts 10:47)
In Acts 10:43 we read
..whoever believes in Him receives remission of sins. Again, these Gentiles received
the gift of the Holy Spirit - Acts 10:45 -
when they believed on the Lord Jesus Christ - Acts 11:17 - (compare with Acts 16:31 -
Believe on the Lord Jesus Christ and you will be saved) BEFORE water baptism - Acts 10:47. This is referred to as
repentance unto life - Acts 11:18.
*So, the only logical conclusion
when properly harmonizing scripture with scripture is that faith in Jesus Christ "implied in genuine repentance" (rather than water baptism) brings the remission of sins and the gift of the Holy Spirit (Luke 24:47; Acts 2:38; 3:19; 5:31; 10:43-47; 11:17,18; 15:8,9; 16:31; 26:18).
*Perfect Harmony*
Acts 4:4 - However, many of those who heard the word
believed; and the number of the men came to be about five thousand.
Acts 5:14 - And
believers were increasingly added to the Lord, multitudes of both men and women.
Your 4 step out of order false plan of salvation is the result of bad semantics and flawed hermeneutics.
Now in regard to the sinner's prayer, simply reciting a sinner's prayer will not accomplish anything on its own. I must have prayed the sinner's prayer 20 different times with Pat Robertson while watching the 700 Club when I was a teenager, yet nothing happened. Why? Because there was no repentance and faith. Such a prayer needs to include what a person knows, understands, and believes about their sinfulness and need for salvation, followed by repentance/faith.
For a person who comes to the realization that he is lost and in need of Jesus Christ to save him, he may only obtain salvation by grace through faith in Jesus Christ alone. He needs to understand that Jesus Christ paid the penalty for his sins by His sacrifice on the cross of Calvary, was buried, and rose again the third day, and he needs to make a genuine and willful decision to totally trust in Jesus as the ALL-sufficient means of their salvation in order to be saved. In doing this he is calling on the name of the Lord to save him.
Now if subsequent to such a decision, the person would like to pray what some call a "sinner’s prayer," (calling on the name of the Lord to save him in prayer) he may do so, as long as he understands that it was his decision to trust in Jesus Christ alone for salvation that apprehends his salvation and not simply reciting a prayer in of itself, as if it's a magical formula to recite a set of words, but prayer may be used to call upon the name of the Lord to be saved.