Holy Saturday different from Passion Saturday
On Saturday, a vesperal Divine Liturgy of Saint Basil the Great is celebrated, called the First Resurrection Service (Greek: Ἡ Πρώτη Ἀνάστασις), named so because chronologically it was composed earlier than the Paschal Canon by St. John of Damascus rather than because it occurs earlier liturgically. This is the longest Divine Liturgy of the entire year and is performed later than on any other day of the year, "at the tenth hour of the day".On 'Lord, I call', four of the usual Sunday hymns from the Octoechos are sung, followed by four for the day, the doxasticon from Lauds the night before and the usual dogmatikon. After the Little Entrance, there is no Evening Prokimenon, but there are 15 Old Testament readings that recall the history of salvation, many of which relate to Passover, baptism, or the Resurrection (note that book names here are given according to the Septuagint):