Nicetas became
bishop of his native city of
Remesiana (Bela Palenka, Serbia). He was a close friend of Saint Paulinus of Nola, who praises him as a virtuous and learned bishop, gifted with a pure and priestly heart and with a clear-thinking mind. Paulinus also pays tribute to Nicetas' missionary labors across the Balkan Peninsula.
Nicetas is now known mainly through his writings. In one of his works, The Vigils of the Saints, he encourages the practice of keeping a watch of
prayer in the night. He cites the numerous direct or indirect references to this
form of
prayer in the New Testament, and invokes the examples of the saints. He also explains the advantages of this practice: "The quiet and solitude of the night make it a favorable
time for
prayer and most suitable for those who watch. With worldly occupations put aside and the attention undivided, the whole man, at night, stands in the divine presence."
Nicetas also delivered a sermon on the importance of liturgical singing. In fact, he is believed to be the author of the Church's perennial
hymn of thanksgiving, the Te Deum.