the sinner's prayer is a type of creed spoken to affirm that belief is orthodox (and if it isn't you say the words so it now is). It is beneficial with discipleship as the repentant unpacks and begins to understand what they actually said over the coming weeks/months/years which is where the real process of salvation is unfolded. Often it is viewed as a summit of our faith but it only is the beginning.
I see salvation as a process not a single moment where the sinner's prayer seems to value salvation as a moment.
Well, I also see salvation as a process.
Justification (Faith in God's grace that includes the Sinner's Prayer in many cases and not all),
Sanctification (Living Holy by the working of God within them), and
Glorification (The Lord taking that person home to be with them for their faithfulness).
As for the Sinner's Prayer being valued in the moment as if that was all they needed to do. This problem is addressed in the Scriptures.
"Bring forth therefore fruits worthy of repentance,..." (Luke 3:8).
Repentance is confessing sin or seeking forgiveness with God (i.e. Which can be the Sinner's Prayer in some cases). How so?
Matthew 3:6 (which then lines up with
Matthew 3:8). Also, in
Mark 1:4-5, it says John preached the "baptism of repentance" for the remission of sins (verse 4), and it then defines this "baptism of repentance" by saying they confessed their sins when they were baptized (verse 5)."
You said:
I've heard people say "next Sunday I'm going to give my heart to the Lord" then the next Sunday they get a pastor/elder to lead them through the sinner's prayer. ... Read the gospels and find where Jesus tells us to pray to him... he doesn't. He prayer to the Father and says we can do so in the authority of his name (which is why we conclude "in the name of Jesus, Amen") Christ is a mediator between us and the Father and allows us a restored relationship with God but direct prayer to him is actually no the model of prayer presented in by Christ himself; its "ask anything [to the Father] in my name and it will be given". When we say a prayer like this we are ignorant of the roles of the Father and Holy Spirit and start salvation with a void and this sort of Jesus enriched God.
No. You are not reading the Bible clearly or plainly. We do see prayer for the Lord or Jesus in the Bible (See: John 14:14; 1 Corinthians 1:2; 2 Corinthians 12:7-9, Acts of the Apostles 7:54-60; Acts of the Apostles 8:24, 1 John 5:11-15, Hebrews 4:14-16).
You said:
The problem we have with this discipleship without the sinner's prayer is that you don't know if they are saved or not and we can't check that box off. Well, the sinner's prayer really doesn't accomplish this either as it often is done in ignorance. Westerns should probably preface their evangelizing method with "spoiler alert" because that's what they are. they package the message to tell everyone the answers first and then get a person to repeat it in the form of prayer and call them a Christian.
Just because somebody partakes in a Biblical practice unbiblically does not undermine it's genuineness. Biblical cults can believe certain true things in the Bible, but just because they believe a particular truth in one instance does not invalidate that truth just because their religion is wrong. I would say that a person has not even read the Bible or they read the Bible with a certain pair of lenses on so as not to see the obvious portions of Scripture that do talk about the Sinner's Prayer because they have a preconceived belief by an article they read or from what they learned by their Pastor at their church.
There is also the danger of going in the opposite wrong extreme, which is denying that we are saved initially and ultimately by God's grace through faith in Jesus Christ. That is all work and not even a belief in Jesus that saves us at all. This is wrong and Paul wrote in the way that he did to counter against those who think they could be saved exclusively by their deeds alone without God's grace through faith. We need both: "Faith" + "Works of Faith" to = "Salvation."