The First Three Commandments of the Decalogue

02/18/2026
|By Fr. Marcos Faes de Araújo, EP

Summary of the Module

 

“You shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength” (Mk 12:30). In this Second Module, we will study the first three Commandments of the Decalogue, which deal with our relationship with God.

 

Fr. Marcos Faes de Araújo, EP Fr. Marcos Faes de Araújo, EP

Fr. Marcos Faes de Araújo, EP, holds a Doctorate in Theology from the Pontifical University of San Tommaso d'Aquino (Angelicum - Rome). His doctoral thesis was awarded the highest grade (Summa cum Laude). He has been a director of Houses of Formation in Buenos Aires (Argentina) and Bedford, New York (USA); he has been responsible for the Heralds of the Gospel in Canada and the United States. He is Professor of Theology, Mariology and Ecclesiology at the St. Thomas Aquinas Theological Institute (ITTA) since 2009 and has taught postgraduate courses abroad.

Course Lessons

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Lesson 1 – The First Commandment

Doing the Lord’s will must be the central goal of our existence. We are created to worship Him, revere Him and seek His glory in all our actions…
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Lesson 2 – You shall not have strange gods before Me

To love God above all else, we must keep away from all forms of idolatry, especially being aware of the idolatrous practices in vogue today…
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Lesson 3 – Praising God’s Holy Name

The Second Commandment tells us to praise God and forbids blasphemy. We must courageously bear witness to Our Lord Jesus Christ, despite the world’s rejection of Him…
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Lesson 4 – Keep holy the Lord’s Day

The Third Commandment tells us how to honour God with acts of worship. To fulfil this Commandment, we must keep the Lord’s Day holy by following specific guidelines…

Bibliography

 

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GUEULLETTE, Jean-Marie. Pas de vertu sans plaisir [No virtue without pleasure]. Paris: Cerf, 2016.

 

LORING, Jorge. Para Salvar te [To save you]. Madrid: Ediciones Católicas, 1994.

 

NEIRAGUET, D. Com pendio de la Teología de San Alfonso de Ligorio [Compendium of the Theology of St. Alphonsus Maria de Liguori]. Madrid: Editorial Católica, 1852.

 

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ROYO MARÍN, Antonio. Teología Moral para Seglares [Moral Theology for the Laity]. Madrid, BAC: 2007, vol. I-II.

 

____________________. Espiritualidad de los Seglares [Spirituality of the Laity]. Madrid: BAC, 1967.

 

SCORDOGLIO, Tommaso. La Legge Naturale [The Natural Law]. Verona: Fede e Cultura, 2007.

 

SPIRAGO, Francisco. Catecismo Popular Explanado [Popular Catechism Explained]. Barcelona: Políglota, 1907, vol. I-III.

 

Thomas Aquinas. The Summa Theologica. Allen: Christian Classics, 1981, vol. I-V.

 

__________________. Commentary on the Gospel of St. Matthew. Trans. Rev. Paul M. Kimball, Dolorosa, 2011.

 

__________________. Commentary on the Gospel of St. John. Trans. Fabian Larcher and James A. Weisheipl, The Catholic University of America, 2010.