This paper offers a theological-musical reflection on the sermon De Psalmodiae Bono, which discusses the art of singing the psalms within the context of Christian worship. In this treatise, Nicetas focuses on the practice of chanting and reciting the Psalms, providing guidance on the importance of psalmody-the act of chanting the psalms-and emphasizing the proper and edifying manner of performing it in the assembly of believers. Rather than presenting merely a technical discussion, the sermon analyzes how liturgical music contributes to the spiritual edification of the faithful through a careful and reverent performance of the Psalms. Accordingly, the sermon De Psalmodiae Bono is fundamental to understanding Nicetas s liturgical approach and the influence of his thought on the worship practices of the early Church. Its significance becomes evident by showing how, from ancient times, the Church has endeavored to maintain the proper order in liturgical celebrations while at the same time promoting the spiritual formation of the community through prayer and music.