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Jeff Cavins
Sarah Christmyer
Dr. Timothy Gray


Matthew Pinto
Thomas Smith

Dr. Edward Sri

Jeff Cavins Jeff Cavins
Jeff Cavins served as a Protestant minister for 12 years before returning to the Catholic faith. His story is chronicled in his autobiography, My Life on the Rock. Jeff is best known as the founding host of the popular programs Life on the Rock (on EWTN) and Morning Air (on the Starboard Network). He is creator of The Great Adventure Bible Timeline learning system and co-creator of the Amazing Grace book series.
Sarah Christmyer Sarah Christmyer
Sarah Christmyer converted to the Catholic Church in 1992 from a strong Evangelical Protestant background. Sarah holds a B.A from Gordon College in Wenham, MA. She has taught numerous Bible studies and is currently program director for The Great Adventure Bible Timeline. She also helped launch Catholic Scripture Study (CSS) and is coauthor (with Gayle Somers) of two Bible studies on Genesis.
Tim Gray Dr. Timothy Gray
Dr. Tim Gray is the president of the Augustine Institute, professor of Sacred Scripture at the St. John Vianney Theological Seminary, and the executive director of the Denver Catholic Biblical and Catechetical Schools. He holds a PhD in biblical studies from Catholic University of America.

Dr. Gray is the author of several books, and has teamed up with Jeff Cavins in the development of The Great Adventure Bible Study Series. A nationally known speaker, Dr. Gray has filmed numerous series for EWTN. He resides in Denver with his wife, Kris, and their son Joseph.

Matthew Pinto

Matthew Pinto
Matt Pinto is the founder and president of Ascension Press. He is co-founder of CatholicExchange.com and Envoy magazine, and is the author of the bestselling book Did Adam and Eve have Belly Buttons?, co-author (with Jason Evert) of Did Jesus Have a Last Name?, creator of the Friendly Defenders Catholic Flash Cards, and
co-creator of the Amazing Grace series.

Tom Smith Thomas Smith
Bringing a wealth of experience and insight on the study of Scripture to audiences across the U.S., Thomas Smith is a repeat guest on EWTN and Catholic radio as well as a sought after parish mission and conference speaker. He is the co-author of Revelation: The Kingdom Yet to Come and a presenter for The Great Adventure Bible Timeline. He has taught as an adjunct professor at the St. Francis School of Theology in Denver, and is the former director of the Denver Catholic Biblical School and the Denver Catechetical School. Thomas lives with his family southeastern Idaho.
Dr. Edward Sri Dr. Edward Sri
Edward Sri is professor of theology and Scripture at the Augustine Institute in Denver and a visiting adjunct professor at Benedictine College. He holds a doctorate from the Pontifical University of St. Thomas Aquinas in Rome and is the author of several books, including Mystery of the Kingdom: On the Gospel of Matthew and Dawn of the Messiah: The Coming of Christ in Scripture.