 On Sundays, just before the exapostilarion the Deacon leads the choir in singing “Holy is the Lord our God” three times.On Sundays, the theme of the Exapostilarion reflects the concept of the Myrrh-bearing Women being sent to bring the Good News (Gospel) of the Resurrection of Christ to the Apostles, and is drawn from the Resurrection Gospel that was chanted before the Canon.During Holy Week the Exapostilarion is of great significance and is solemnly chanted in the center of the church by three singers (or by the entire choir).