The annual Robert K. Campbell Memorial Lectureship on Christian Unity, "Continuing the Dialogue: Orthodoxy and Roman Catholicism," is April 10, DeSales University, Center Valley.

Lecturers are Dr. Vito Nicastro, Associate Director, Office for Ecumenical and Interreligious Affairs, Roman Catholic Archdiocese of Boston, and Dr. Christopher Veniamin, Professor of Patristics, Saint Tikhon's Orthodox Theological Seminary, South Canaan Township.

Lectures will be given at 4 and 7:15 p.m. with a worship service and a dinner in between.

This year is a "first" for the Campbell Lectureships. Since its inception in 1993, the annual lectures have brought scholars and theologians to the Lehigh Valley. Each of the 21 previous presenters spoke from the perspective of his or her particular tradition on an aspect of Christian Unity.

This year, the Campbell Lectureship has two presenters, one Orthodox scholar and one Roman Catholic scholar addressing the doctrine of salvation from different theological and historical understandings.

Information or to register: lehighchurches.org, 610-433-6421