I will rejoice heartily in the Lord,Isaiah 61:10a
my being exults in my God.
Holy Mother Church, the new Jerusalem, rejoices as one body and one bride. In the Liturgy of the Hours, the Common of the Blessed Virgin Mary draws its first canticle from Isaiah 61:10–62:3 with this prefatory reflection: I saw the new Jerusalem, the holy city, prepared as a bride adorned for her bridegroom (Revelation 21:2).
Be glad, Virgin Mary, for you have deserved to bear the Christ, the creator of heaven and earth; you have brought forth the Savior of the world.Antiphon for the Common of the Blessed Virgin Mary
The canticle unfolds with exultant nuptial and agricultural imagery to celebrate the restoration of Zion and concludes: “You shall be a glorious crown in the hand of the Lord, a royal diadem held by your God” (Isaiah 62:3).