I suspect you will not accept just one, so I'll pass on giving it to you. Suffice it to say that there is no record of Abraham doing anything other than believing God and that was counted unto him as righteousness. No confession, no baptism, no nothing. Just believing. John 3:16. Not by works.
Abraham was not under the New Covenant, so confession and baptism were not required for his salvation.
I said I will accept one verse and that is what I meant. All I was saying is that I have not yet found the verse that teaches faith alone saves without contradicting other passages of Scripture. If you have found that one, please show it to me.