* The Great American Desert: A Historical Novel (1989)
* The Gift: A Novel of the First Christmas (1991)
* In This Our Day (1993)
* Children of the Last Days: A Novel of Masada (1995)
* The Man from Beyond: A Novel of Peter the Apostle (1997)
* In The Likeness: A Biblical Novel (2000)
* The Hidden Pope (2002)
* In a Far Land: A Novel of Joseph, Father of Christ (2005)
* Through His Eyes (2007)
* For the Life of the World: A Novel of the Last Days of John Paul I (2010)
* City of Saints (2012)
* Mary, Called Magdalene: A Novel (2014)
* The Third Secret: A Novel (2016)
Short stories
* "The Day the World Changed" (1990)
* "The Last Gift" (1991)
* "The First Noel" (1992)
* "The Star of Bethlehem" (1993)
* "The Wise Men" (1994)
* "The Flight into Egypt" (1995)
* "The Massacre of the Innocents" (1996)
* "The Presentation of Jesus in the Temple" (1997)
* "The Finding of Jesus in the Temple" (1998)
* "The Baptism of Jesus" (1999)
* "The Temptation of Jesus" (2000)
* "The Transfiguration of Jesus" (2001)
* "The Last Supper" (2002)
* "The Crucifixion of Jesus" (2003)
* "The Resurrection of Jesus" (2004)
* "The Ascension of Jesus" (2005)
* "The Pentecost" (2006)
* "The Dormition of Mary" (2007)
* "The Assumption of Mary" (2008)
* "The Coronation of Mary" (2009)
* "The Last Days of Mary" (2010)
* "The Eternal Virgin Mary" (2011)
Articles
* "The Real Meaning of Christmas" (1990)
* "The Life of Jesus Christ" (1991)
* "The Miracles of Jesus Christ" (1992)
* "The Parables of Jesus Christ" (1993)
* "The Passion of Jesus Christ" (1994)
* "The Resurrection of Jesus Christ" (1995)
* "The Ascension of Jesus Christ" (1996)
* "The Pentecost" (1997)
* "The Dormition of Mary" (1998)
* "The Assumption of Mary" (1999)
* "The Coronation of Mary" (2000)
* "The Last Days of Mary" (2001)
* "The Eternal Virgin Mary" (2002)
* "The Mystical Life of Mary" (2003)
* "The Marian Apparitions" (2004)
* "The Rosary" (2005)
* "The Scapular" (2006)
* "The Miraculous Medal" (2007)
* "The Feast of Our Lady of Guadalupe" (2008)
* "The Feast of the Immaculate Conception" (2009)
* "The Feast of the Assumption" (2010)
* "The Feast of the Nativity of Mary" (2011)
* "The Feast of the Presentation of Mary" (2012)