Edward B. “Ted” David is a professor of the history of science at Messiah College.

Beth Kissileff is an author and journalist based in Pittsburgh. She is a member of one of the congregations that meets at Tree of Life synagogue and, after the Oct. 27 shooting, shared stories about the religious lives of the victims she knew.

Donald Braxton is a professor of religion at Juniata College in Huntingdon, Pennsylvania. He has planned a conference on and written about transhumanism and can speak to issues related to religion and film.

The Rev. Mitch Hescox is president and CEO of the Evangelical Environmental Network. He is also the co-author of Caring for Creation: The Evangelical’s Guide to Climate Change and a Healthy Environment.

Monica R. Miller is an associate professor of Africana studies and religious studies at Lehigh University in Bethlehem, Pa., and the author of Religion and Hip Hop.

Carl R. Trueman is a professor of church history at Westminster Theological Seminary in Glenside, Pa. He teaches a course on the Reformation, which is available online, and is the author of  The Reformation: Yesterday, Today and Tomorrow. Contact via the seminary’s main telephone number or an online email form.

Christopher McMahon is associate professor of theology at St. Vincent College in Latrobe, Pa. Much of his research focuses on the Gospels, Christian doctrine and Catholic theology. He wrote “Imaginative Faith: Apocalyptic Theory, Science Fiction and Theology” in the Journal of Theology Dialogue.

Arch Street United Methodist Church in Philadelphia is housing an undocumented immigrant. Contact Margaret Harris.

The New Sanctuary Movement of Philadelphia is a coalition of about 20 groups, including churches, synagogues and ministries, that  provide sanctuary and support to immigrants in the Philadelphia area. Peter Pedemonti is the group’s co-founder and director.