A recent document entitled “Evangelicals and Catholics Together: The Christian Mission in the Third Millennium,” signed by a number of prominent evangelicals, has neglected the wide doctrinal breach that separates evangelicalism and Roman Catholicism. It declares the unity of the two participating groups, emphasizes their common faith, allows for doctrinal differences, but states that the two nevertheless have a common mission. A fatal flaw in the document is its assumption that a common mission is possible in spite of the doctrinal differences. The alleged common mission is in effect a contradiction of the truths treasured among evangelicals. Reasons given by evangelical signers of the agreement are hollow and unconvincing. The statement in effect reverses what the Protestant Reformation advocated regarding sola Scriptura and sola fide. The position of the Reformers regarding justification, which was quite biblical, was pronounced as anathema by the Roman Catholic Council of Trent in 1547. Other essential biblical doctrines have been denied by Roman Catholic pronouncements, even recent ones. Unity with Roman Catholicism is not a worthy goal if it means sacrificing the truth.