I think you are swallowing camels and straining gnats. On one hand you say >>A man MUST confess with his “voice”, whether through his mute consciousness or sign language or in his regular voice. << Then you say that "Faith Alone" is a doctrine of man. Really, if the bible tells me that I am saved by God because of my faith in Christ Jesus then that is all that is required. As you said >>whether through his mute consciousness or sign language<<.
The quote you gave from Rom 10:10 is quite clear "...with the heart one believes unto righteousness..." with the heart one believes, is that not faith? Because of our faith God grants us righteousness {we are saved/justified} in the sight of God. We see this also in Rom 3:22 "even the righteousness of God, through faith in Jesus Christ..." and this is made clear in Rom 3:24-25 "being justified freely by His grace through the redemption that is in Christ Jesus, whom God set forth as a propitiation by His blood, through faith..."
I fully agree that we as Christians must be willing to confess Christ Jesus as Lord but our confession is because we are saved not so that we will be saved.
Here is an example: I am a Canadian, born and raised. So if asked I would say that I am Canadian. My saying that I am a Canadian does not make me a Canadian. That is the same with our confession of faith in Christ Jesus. If I am asked if I am a Christian I would say yes, because I trust in Christ Jesus for my salvation. My confession does not save me it is my faith in Christ Jesus that saved me.
Rom 10:…”and with the mouth confession is made UNTO, or resulting in, SALVATION.” Righteousnes IS NOT salvation. You know this from this exact passage. Confession IS NOT a result of salvation. Confession is a prerequisite to salvation. This very passage confirms it beyond all doubt. You insisting otherwise does not change it all around to suit what you choose to believe. You do not get to prescribe salvation and what is written. God does that.
And Paul constantly juxtaposes faith against Mosaical Law, insisting that the Law of Moses has been replaced by the New Covenant. Being born a Jew IS NOT the New Covenant, but rather Jesus and His atonement, not animals and other sacrifices.
The idea that faith is simply believing in Jesus and accepting salvation IN YOUR MIND is completely a manmade doctrine.
Faith and confession go hand in hand just like righteousness and salvation EXACTLY as Rom 10 explains it. If you choose to jumble it up and reconstruct it then you are resisting the Holy Spirit.
You are opposed to the plain text in Rom 10 for reasons of your own, and not because of other passages of scripture.
And in regards to confession being necessary for salvation you are dead wrong.
And in regards to faith NOT being a work, you are also wrong. Tell your preacher that using his BRAIN, MIND, IMAGINATION is not work. Tell a writer, an artist, a teacher or a student that using your mind IS NOT work.
Memorization is not work? Recall and remembrance is not work? Choosing to accept or reject the Gospel is not work?
It is this very stubborn rejection of scripture which has people totally misunderstanding John 5:29: “Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.”The text plainly says “Jesus ANSWERED them…”. Meaning He told them exactly what “Work” THEY were to do…BELIEVE.
Yet resistant people insist that Jesus was saying “Belief” or “Faith” is a work only God can do, making Jesus sound like He totally ignored their question.
But “Jesus answered” their question. BELIEF is the “work” they could do to do the work God would have them do.
Otherwise, if Jesus was saying that only God can perform the “work” of making a man have faith, then that is Calvinist to the bone…with Martin Luther’s insertion of “alone”. (Ref “Sola fide” in wiki).
“Luther added the word allein ("alone" in German)
to Romans 3:28 controversially so that it read: "So now we hold, that man is justified without the help of the works of the law, alone through faith".
THAT is the root and foundation of your “Faith alone” doctrine. And not holy scripture.
Again, I would never weaken you in our Lord and His word…only strive to make you stronger.
May God bless you with every good blessing.