Nicetas (c. 335–414) was Bishop of Remesiana (present-day Bela Palanka, Serbia), which was then in the Roman province of Dacia Mediterranea.
[1] Nicetas promoted Latin sacred music for use during the Eucharistic worship and reputedly composed a number of liturgical hymns.
Though some nineteenth and twentieth-century scholars number the major Latin Christian hymn of praise, the Te Deum, to Nicetas (traditionally attributed to Ambrose and Augustine) this is now considered "controversial".
[4] Because of his missionary activity, his contemporary and friend, Paulinus of Nola, lauded him poetically for instructing in the Gospel barbarians changed by him from wolves to sheep and brought into the fold of peace, and for teaching to sing of Christ with Roman heart bandits, who previously had no such ability.
They contain the expression "communion of saints" about the belief in a mystical bond uniting both the living and the dead in a certain hope and love.