What do Reformed theologians mean that Catholics have the "more metaphysical conception" of God's grace?

In [Derek Rishmawy's blog article](https://derekzrishmawy.com/2014/10/19/triune-justification/) defending how Reformed justification is *not* sub-Trinitarian, he compared fully Trinitarian Reformed approach as "the forgiving mercy of God" (via a quote from the Dutch Reformed theologian Herman Bavinck) "to the more metaphysical conception of the medieval Roman church". He then says that the Reformed approach ALSO adheres to the Augustine's formula "*Opera trinitatis ad extra indivisa sunt*". **My question is**: can we have a more fleshed out comparison between the Reformed vs. Catholic conception of grace, and how the latter is "more metaphysical"? ### More on Bavinck's understanding of Nature and Grace - The section [Nature and Grace in Bavinck](https://digitalcollections.dordt.edu/cgi/viewcontent.cgi?article=1466&context=pro_rege) translated from J. Veenhof's dissertation on Bavinck where there is a similar contrast: > In Roman Catholicism, Christianity may still be *Erlösungsreligion*, but “it is in the first place not *reparatio*, but *elevatio naturae*.”40 However, according to Bavinck’s reformational conviction, salvation is precisely *reparatio* of created, natural life. of created, natural life. That is why he can maintain the position, over against Roman Catholicism as well as Pietism and Methodism, that nature as God’s creation “is in itself of no less value than grace.” The Holy Spirit, who acts in continuity with God’s directives in natural life, “seeks by His grace to restore the whole of natural life, to liberate it from sin and to hallow it to God.”41 “The kingdom of God is hostile to nothing but sin alone.”42 **This insight makes it possible for Bavinck to replace the predominantly ontological and metaphysical Roman Catholic conception with a much more religious and existential approach to the problematics.** Consider only the following remarkable statement > > > Grace and sin are opposites; the latter is overcome only by the power of the former; but as soon as the power of sin is broken (and in the same measure that it is) the opposition between God and man disappears.43 - 2016 blog article [As Far As Curse is Found: Nature and Grace in Herman Bavinck](https://reformedforum.org/far-curse-found-nature-grace-herman-bavinck/) summarizes Bavinck's polemic against the Roman Catholic viewpoint on nature and grace. - 2019 blog article [Does nature need addition? Bavinck against the *donum superadditum*](https://allkirk.net/2019/08/23/does-nature-need-addition-bavinck-against-the-donum-superadditum/) - A useful but polemical article about *donum superadditum* containing partial truths of Catholic sacrament system and the meaning of Jesus's sacrifice: [Privation theory of evil and the *donum superadditum*](https://www.apologeticscentral.org/post/the-privation-theory-of-evil-and-the-donum-superadditum) . Possible misunderstanding of Thomism is seen here, explained by [this article](https://allkirk.net/2018/09/26/doubting-thomists-john-bolts-defense-of-the-real-aquinas-against-his-reformational-critics/)