Paul writes:
For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, that no one should boast. For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them (Ephesians 2.8-10).
Sadly, many in New Testament scholarship don’t believe that Paul wrote Ephesians. That is too bad for them. But I note that we Evangelicals have here Paul’s statement about salvation by grace through faith apart from works and the context demands that these works are not “boundary markers” like circumcision, dietary code, or cultic calendar, but rather generic good deeds.
Paul also writes:
For we also once were foolish ourselves, disobedient, deceived, enslaved to various lusts and pleasures, spending our life in malice and envy, hateful, hating one another. But when the kindness of God our Savior and His love for mankind appeared, He saved us, not on the basis of deeds which we have done in righteousness, but according to His mercy, by the washing of regeneration and renewing by the Holy Spirit, whom He poured out upon us richly through Jesus Christ our Savior, that being justified by His grace we might be made heirs according to the hope of eternal life (Titus 3.3-7).
Granted, Paul doesn’t mention faith explicitly, but do we not find here an affirmation of salvation by grace and mercy rather than anything we have done? Again the problem is the higher critical consensus that Titus is not a genuinely Pauline Epistle. But that is not a problem for Evangelicals.
My point is that reinterpreting Galatians and Romans could not, even at its worst, threaten justification by grace through faith apart from any and all good deeds. The only thing at stake is the possibility that mortal men whom we respect such as John Calvin and Martin Luther might have made some exegetical mistakes.