Many threads about grace have been started and having look through them, I have not found one yet that proves salvation is by 'grace alone'. (A book some person wrote does not prove it, sorry)
Here is a thread where those who believe salvation is by grace alone can post that mysterious, elusive verse. The only qualifier I have is that any verse(s) posted must already have the word "only" or "alone" in it, that is, either word cannot be added to or assumed into the verse. If people could add to or assume ideas into the bible then everyone, anyone can make the bible say whatever they desire for it to say.
"Grace" and "grace only" are not the same things.
It goes without saying that no one will fulfill your request, because they can't show any verse that will say that. However, I would like to say that everything about salvation hinges upon the grace of God
. The entire scope of salvation which is offered to us through the "good news" is all put into motion by God's grace. Our faith is centered on the death of Jesus and His resurrection through the power of God, and everything that means to us...but that was because God put His grace into action. Without such grace or the good news about it, there wouldn't be any inspiration to lead us to conviction or create faith in our hearts, nor give us hope. Repentance...simply put...it also is by God's good grace that He allows us to repent, especially since all of us are guilty and the penalty for sin is death. Confession...a requirement of Christ is still connected to grace because it was God our Father who taught us of eternal life through Jesus, so when we publicly acknowledge our faith in Christ it is by God's grace that He has moved us in such a way as to make us want to confess Jesus as Lord. Baptism, at least by my belief, is an extension of that confession of faith...so it too can be said to have its roots connected to God's grace.
I know that God's grace is what sets everything into motion, and that is entirely God's doing, but the response that we have is a working of the Holy Spirit in us. Read Isaiah 55:11 -
Isaiah 55:11 (ESV)
11 so shall my word be that goes out from my mouth; it shall not return to me empty, but it shall accomplish that which I purpose, and shall succeed in the thing for which I sent it.
The word is the sword of the Spirit, and it is that Spirit that is working in us through the gospel when we become believers. So even the work of God through His Spirit is actually an extension of His grace as well.
I'll await to be flamed on both sides (that's if anyone bothers to read this), but this is the way I see it.
I'm happy for God's grace...it means everything to me!