"Seen from the perspective of the Reformation, the emergence of modern Christianity was possible only as the enemy that had to be opposed and battled against. We may have our reasons to want to be modern Christians in spite of all that, but we must be clear about the fact that, seen from the Reformation's view, we are positioning ourselves precisely against Luther with Karlstadt, and against Calvin with a Socinus, a Blandrata, a Castellio, Bolsec, a Servetus, or against the fathers of Dort with the Remonstrants. In the portrayals of this last Pyrrhic victory of Reformation Christianity over the enemy from the left, we sense even in a man like Seeberg the unmistakable sympathy of the modern man for those figures who are closer to us both intellectually and personally, people like Coornhert, Wtenbogaert, Arminius, Hugo Grotius, and Episcopius. These truly noble and highly respectable men would have graced appropriately any modern Protestant (even positivist!) pulpit or professorial chair! Who would be so presumptuous today as to expel such spirits with the preremptory, 'You are dismissed! Go! Go! ' ('Dimittimi, ite, ite!') with which Bogerman at the memorable 57th meeting of the synod ejected Episcopius and his fifteen comrades from the assembly--where they had only appeared as defendants--and thus out of the church. But we must admit that the fathers of Dort were doubtless right when they described the doctrine of these men as thoroughly Semi-Pelagian, and thus a revival of Catholic Christianity. But who then are we, and where do we stand in relation to the Reformation if we should find these men to be most sympathetic to our position now? If Troeltsch had expanded his well-known thesis that these figures and the related anti-Reformation circles of the sixteenth and seventeenth centuries were the actual predecessors and ancestors of our Christianity, with a further thesis to the effect that with them we must make our commitment to Semi-Pelagianism and thus to solidarity with the anti-Reformational Middle Ages, then his theology would truly have been a word of redemption. The request, 'Tell me thy company,' would need once more to be put very bluntly to modern Protestantism in order to get it either to return to the Catholic Church, to which only because of a small misunderstanding it does not belong today, or to consider how it might again be or become Reformation Christianity. I need scarcely to say that this does not imply the reintroduction of the Canons of Dort."
[Quoted from The Theology of the Reformed Confessions. 1923. Lectures by Karl Barth. Columbia Series in Reformed Theology. Translated and annotated by Darrell L. Guder and Judith J. Guder. (Louisville: Westminster John Knox Press, 2002). Pages 208-209.]
Obviously, men like Gerald Bray, J. I. Packer, Timothy George, Albert Mohler, and numerous others who claim to be Reformed, are way out of line in calling for some sort of unity with Roman Catholics. Unless and until Rome moves in a more Reformed direction we have no basis for unity whatsoever. I find it amazing that even Karl Barth drew the lines in a dialectical either/or!