The Solemnity of the Most Holy Trinity is one of the great feasts of the Church's Year and one of the principle feasts of the Society of Our Lady of the Most Holy Trinity. To celebrate, every year SOLT prays a novena that begins 4 days before the actual feast in petition to God the Father, Son, and Holy Spirit, and ends in thanksgiving for 4 days after the feast. Much of it has been taken from the City of God by Venerable Maria of Agreda.
Novena Prayer
Blessed be God, Father, Son, and Holy Spirit;
To Abba Father who chose Our Lady as His daughter and made her Queen of all creatures and creation;
To the Incarnate Word who chose her as His mother and mediatrix of His incarnation and salvific work;
To the Holy Spirit who chose her as His spouse, filled her with grace and, together with the Father and the Son, made her Queen of the Most Holy Trinity.
To Abba Father who chose Our Lady as His daughter and made her Queen of all creatures and creation;
To the Incarnate Word who chose her as His mother and mediatrix of His incarnation and salvific work;
To the Holy Spirit who chose her as His spouse, filled her with grace and, together with the Father and the Son, made her Queen of the Most Holy Trinity.