Inscribed: "GUIDE ME WAKING GUARD ME SLEEPING" - Luke 2:29-32 engraved in an ancient insular script from the golden age of Irish manuscripts The Nunc Dimittis also called the Song of Simeon is a brief hymn of praise. Because of its implications of fulfillment, peace and rest, the early church viewed it as appropriate for the ending of the day. Since the 4th C it has been used in evening worship services; Compline, Vespers and Evensong.