Well, I have a little time on my hands so I will jump in with both feet.
Most of those involved in this thread know where I stand on Soteriology. I am a Particular Baptist. I believe in Particular Redemption. I believe Christ saved me on the cross and nothing more, that I could add, is required for my salvation. I believe God is Sovereign in salvation (just like everything else). I accept, without apology, the 5 Heads of Doctrine of the Canons of the Synod of Dordt.
I reject Finneyesque Decisionism.
However, when taken on an individual basis, when a person "walks the aisle" or "goes forward" or "prays the sinner's prayer" aren't they, by so doing, demonstrating that they have already come to Christ for salvation, and already believe on Him and His finished work, and accept Him as Savior and Lord?
Now, I will be the first to agree that some will come with ulterior motives intending to deceive others, but I would think they are in the vast minority of those who respond to a Billy Graham type of "invitation."
Salvation is of the Lord. And salvation makes a change in a person's heart, mind, and life. So, could it not be that the evidence of that change of heart, mind, and life is first demonstrated by "walking the aisle" or "going forward" or "praying the sinner's prayer?"
I don't think one needs to be a theologian to be saved. I don't think a person needs to understand the differences between Dicisionism and Sovereignty in salvation in order to be saved.
I do believe the born again child of God is indwelt by the Holy Spirit who will lead that person into all truth, including the truth of the Sovereignty of God in salvation. But we all grow at different rates. Some learn one thing before learning another. I believe all the saved will, one day, understand that Salvation is of the Lord. I believe all the saved will, one day, understand the Sovereignty of God in salvation. Some will come to that truth early and some will come to that truth later. Some will not come to that truth until they stand before the Lord and He lovingly explains "It was all about Me, not about you."
Until then I believe it is counter productive to accuse those on the other side of the aisle (pun intended) of being lost because they disagree with our understanding of biblical soteriology.
Philippians 1:15 Some indeed preach Christ even of envy and strife; and some also of good will:
16 The one preach Christ of contention, not sincerely, supposing to add affliction to my bonds:
17 But the other of love, knowing that I am set for the defense of the gospel.
18 What then? notwithstanding, every way, whether in pretense, or in truth, Christ is preached; and I therein do rejoice, yea, and will rejoice.