The use of the Song of Simeon as a daily canticle is as ancient as the other two Gospel Canticles, but its placement in the Anglican tradition is different. Before the Reformation, the Nunc Dimittis was the canticle for Compline, and when Archbishop Cranmer reduced the several monastic hours to two offices, this canticle found a new home in Evening Prayer, just as various morning offices were combined into Morning Prayer.
Psalm 67 was soon added as an alternative to the Nunc Dimittis, provided it was not the twelfth day of the month (when that Psalm was one of the Psalms Appointed). The first American Prayer Book replaced the Nunc with either Psalm 67 or 103:1-4,20-22. The 1892 Prayer Book restored the Nunc Dimittis alongside those psalms, which was maintained in the 1928. The 1979 and 2019 Prayer Books both present the Nunc Dimittis, with the Magnificat, as the default canticles of Evening Prayer, though other canticles and psalms are permitted in their place.
Like the other two Gospel Canticles, the Nunc Dimittis is from early in St. Luke’s Gospel and looks at the birth of Christ. This one stands out, however, as it takes place after the birth of Jesus, and beholds the child. The use of the present tense is no longer prophetic but narrative: God’s promises have been fulfilled, Jesus has been seen. While the Nunc Dimittis shares the Benedictus’ focus on the Gospel of salvation, it is here applied to the Gentiles, the nations or peoples beyond Israel. Jesus is Israel’s glory, and the light for the Gentiles.
The wording of this canticle has been substantially edited since its previous modernization in 1979, such that it now more closely resembles the classical Prayer Book language. God is letting his servant “depart in peace” (correcting the unfortunate connotations of “have set your servant free” ) according to his word. Simeon’s eyes have seen “your salvation” – an important distinction as Jesus is not only “the Savior” but salvation incarnate. The distinction between “to enlighten” (1979) and “lighten” (classical and 2019) is subtle yet still significant: the light Christ brings is not only the internal wisdom and knowledge of enlightenment but also an external source of light that lightens us from without. Thus the work and Spirit of God is proclaimed more clearly as a divine work and can not be reduced to a merely human spiritual breakthrough.