* The Great American Desert:A Historical Novel (1989)
* The Gift:A Novel of the First Christmas (1991)
* I 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)
* Den skjulte paven (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)
Noveller
* "Dagen verden forandret seg" (1990)
* "Den siste gaven" (1991)
* "The First Noel" (1992)
* "Bethlehemsstjernen" (1993)
* "De vise menn" (1994)
* "Flykten til Egypt" (1995)
* "The Massacre of the Innocents" (1996)
* "Presentasjonen av Jesus i tempelet" (1997)
* "Funnet av Jesus i tempelet" (1998)
* "Jesu dåp" (1999)
* "Jesu fristelse" (2000)
* "The Transfiguration of Jesus" (2001)
* "The Last Supper" (2002)
* "Korsfestelsen av Jesus" (2003)
* "Jesu oppstandelse" (2004)
* "Jesu himmelfart" (2005)
* "Pinsen" (2006)
* "The Dormition of Mary" (2007)
* "The Assumption of Mary" (2008)
* "The Coronation of Mary" (2009)
* "The Last Days of Mary" (2010)
* "Den evige jomfru Maria" (2011)
Artikler
* "The Real Meaning of Christmas" (1990)
* "Jesu Kristi liv" (1991)
* "Jesu Kristi mirakler" (1992)
* "Jesu Kristi lignelser" (1993)
* "The Passion of Jesus Christ" (1994)
* "Jesu Kristi oppstandelse" (1995)
* "Jesu Kristi himmelfart" (1996)
* "Pinsen" (1997)
* "The Dormition of Mary" (1998)
* "The Assumption of Mary" (1999)
* "The Coronation of Mary" (2000)
* "The Last Days of Mary" (2001)
* "Den evige jomfru Maria" (2002)
* "The Mystical Life of Mary" (2003)
* "The Marian Apparitions" (2004)
* "Rosekransen" (2005)
* "The Scapular" (2006)
* "Den mirakuløse medalje" (2007)
* "Vår Frue av Guadalupes fest" (2008)
* "Festen for den ulastelige unnfangelsen" (2009)
* "The Feast of the Assumption" (2010)
* "Fødselsfesten til Maria" (2011)
* "Festen for presentasjonen av Maria" (2012)