Geoffrey Wainwright is without doubt one of the most respected systematic theologians of the century. He has published prolifically and has been involved in major developments in the ecumenical movement. This essay introduces some of the dominant themes in Wainwright's later work. His ecumenical vision of unity-in-truth is discussed. Then the reasons motivating this vision are explained, namely to be of praise to the Triune God. Finally, the question is asked how Wainwright envisions concrete steps towards this vision. Three issues are discussed, namely his notion of ecumenical spirituality, his respect for common worshop, and his proposals
towards mutual confession.