I am a baptist and believe in the baptist/protestant salvation message and gospel as the only true gospel, I believe Catholics muddy the water on this issue.
Catholics often misunderstand by faith alone
I have heard many catholic lay people,authors,debtors and apologist misrepresent what by faith alone means. Now I admit fully this is caused in part by protestants who say “by faith alone” taken literally could lead a catholic to a misunderstanding with no further explanation. It does not help with many books etc that do the same that catholic’s may read.
By faith alone should be rejected
So to clarify “by faith alone” Catholics are 100% right to reject by faith alone just as the book of James does and Augustine. A simple mental faith or belief in Jesus as messiah and god does nothing of itself, as James says so even the demons believe.
what is meant by faith alone?
Maybe a catholic would better understand by Jesus alone. Protestant believe that our salvation comes from Jesus death on the cross for all our sins when we put our faith in him. It is not a mental faith or belief, but a trust in him as savior to pay the price of sin we could not, so when god looks at us on judgment day he can look on Jesus as perfect sacrifice for sins. However this also includes repentance from sin, asking forgiveness for those sins to god, being born again or a change of heart and asking Jesus into your heart as lord and savior.** It is not to say again**, a simple mental faith/belief in god/bible/Jesus as James rightly rejects.