Editing Filioque (section)

====Modern Christian theologians====
[[Yves Congar]] commented, "The walls of separation do not reach as high as heaven."{{sfn|Congar|1983|p=89}}{{Explain|date=November 2015|reason=Looking at Google Books preview, Congar was comparing the different vocabularies in a § titled "A Note on Augustine's Theology of the Trinity and the Eastern Tradition", this sentence is completely without context.}} And [[Aidan Nichols]] remarked that "the {{lang|la|Filioque}} controversy is, in fact, a casualty of the theological pluralism of the patristic Church", on the one hand the Latin and Alexandrian tradition, on the other the Cappadocian and later Byzantine tradition.{{sfn|Nichols|2010|p=255}}

Among 20th-century Protestant theologians, [[Karl Barth]] was perhaps the staunchest defender of the ''Filioque'' doctrine. Barth was harshly critical of the ecumenical movement which advocated dropping the ''Filioque'' in order to facilitate reunification of the Christian churches. Barth's vigorous defence of the ''Filioque'' ran counter to the stance of many Protestant theologians of the latter half of the 20th century who favoured abandoning the use of the ''Filioque'' in the liturgy.{{sfn|ECT|2005|loc="Filioque"}}{{sfn|Guretzki|2009|p=12}}