Communio ecclesiology has attracted a considerable theological following, but this article dwells on other avenues for relating the Trinity to the life of the church. A more traditional approach would relate the church to the processions and missions of the Son and Spirit. Moreover the recent development of Lonergan’s four-point hypothesis offers a more profound account of the church as an “icon” of the Trinity. Not only are such approaches more solidly grounded in trinitarian theology; they also provide interesting opportunities for relating the church to other religious traditions.