I'm a ignorant savage. You will find I research everything. I have few "ideas" and fewer still "preconceived ideas".
"I believe that the Bible is the Word of God and therefore is the only thing I need to teach me about God's Grace and salvation."
Well, I think just about everyone out on this site will make this claim-except maybe the Catholics.
"When a penitent sinner is baptized, it isn't the water magically doing anything. It is the sinner's submission to the will of Christ"
I would suggest the sinner has submitted to the will of Christ long before he/she is baptized. Otherwise they wouldn't want to be baptized. Baptism is an outward manifestation of that submission.
"I would suggest the sinner has submitted to the will of Christ long before he/she is baptized. Otherwise they wouldn't want to be baptized. Baptism is an outward manifestation of that submission."
Please show me Biblical proof that baptism is an outward manifestation of the submission to Christ. Without Biblical proof, this is just your opinion.