Whenever a Catholic points out that Paul was not opposing "works in general" but rather "works of the [Mosiac] Law" (Rom 3:28) Protestants typically point to Ephesians 2:8 and Titus 3:5 as primary examples where Paul can only be speaking of "works in general." But if one examines the context of each of these, they will see that Paul very likely was speaking of "works of the [Mosaic] Law," and I believe responsible exegesis must recognize this.
Consider the context of each of these verses:
Consider the context of each of these verses:
Ephesians 2: 8 For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, 9 not a result of works, so that no one may boast. 10 For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them. 11 Therefore remember that at one time you Gentiles in the flesh, called “the uncircumcision” by what is called the circumcision, which is made in the flesh by hands - 12 remember that you were at that time separated from Christ, alienated from the commonwealth of Israel and strangers to the covenants of promise, having no hope and without God in the world. 13 But now in Christ Jesus you who once were far off have been brought near by the blood of Christ. 14 For he himself is our peace, who has made us both one and has broken down in his flesh the dividing wall of hostility 15 by abolishing the law of commandments expressed in ordinances, that he might create in himself one new man in place of the two, so making peace.
Titus 3: 4 But when the goodness and loving kindness of God our Savior appeared, 5 he saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit, 6 whom he poured out on us richly through Jesus Christ our Savior, 7 so that being justified by his grace we might become heirs according to the hope of eternal life. 8 The saying is trustworthy, and I want you to insist on these things, so that those who have believed in God may be careful to devote themselves to good works. These things are excellent and profitable for people. 9 But avoid foolish controversies, genealogies, dissensions, and quarrels about the law, for they are unprofitable and worthless.
Now this is not to say that we are saved by our own works, because we are not (Jn 15:4-6). But that is very different from reading these two texts as saying the "works" Paul has in mind here are "works in general." Clearly, the contexts are speaking of Jewish "works of the [Mosaic] Law." The "works" that are causing distress in these contexts are works that kept the Gentiles in an inferior place before God, outside the Mosaic Covenant and outside the 'superior' Jewish genealogies. For more, see [This Post] where Protestant scholars (finally) admit the term "law" in Paul means "Mosaic Law," not something generic.