The Rev. Raúl Gómez Ruiz, a Catholic priest who teaches at Sacred Heart School of Theology in Hales Corners, Wis., can talk about liturgy, worship, language, clergy and popular traditions.

David Sanchez teaches theological studies at Loyola Marymount University, Los Angeles. He researches Guadalupan studies and iconography.

The Rev. Gilberto Cavazos-González, a Friar Minor (Franciscan), is associate professor of spirituality and directs the Hispanic ministry program at Catholic Theological Union, Chicago. He writes a weekly column on Hispanic/Latino faith traditions.

Jeanette Rodriguez, a professor of theology and religious studies at Seattle University, wrote Our Lady of Guadalupe: Faith and Empowerment Among Mexican-American Women (University of Texas Press, 1994).

Theresa Torres is assistant professor of Women’s and Gender Studies, religious studies and anthropology at the University of Missouri, Kansas City.  She studies U.S. Hispanic Catholics, Hispanic women’s religious and civic activism, and immigration/refugee issues.

Bishop T.D. Jakes is head of the 30,000-member Potter’s House in Dallas. He was named “America’s best preacher” by Time magazine and in 2001 was the subject of a Time  cover story, “Is this man the next Billy Graham?”

Joel A. Carpenter is a professor of history at Calvin College in Grand Rapids, Mich., where he also directs the Nagel Institute for the Study of World Christianity. He also is the former religion officer for the Pew Charitable Trusts and former director of the Institute for the Study of American Evangelicalism.

Asma Afsaruddin is chair of the Department of Near Eastern Languages and Cultures at the University of Indiana.

Mark Bailey is president of the Dallas Theological Seminary and a noted expert on Christian End Times scenarios. He is the author of essays in the books Countdown to Armageddon (Harvest House, 1999) and The Road to Armageddon (Word, 1999).