The Order how the Psalter is appointed to be Read
The Psalter shall be read through once every Month, as it is there appointed, both for Morning and Evening Prayer. But in February it shall be read only to the twenty-eighth, or twenty-ninth day of the Month.
And, whereas January, March, May, July, August, October, and December have One-and-thirty days apiece; It is ordered, that the same Psalms shall be read the last day of the said months, which were read the day before: So that the Psalter may begin again the first day of the next month ensuing.
And, whereas the 119th Psalm is divided into twenty-two portions, and is over-long to be read at one time; It is so ordered, that at one time shall not be read above four or five of the said portions.
And at the end of every Psalm, and of every such part of the 119th Psalm, shall be repeated this Hymn,
Glory be to the Father, and to the Son: and to the Holy Ghost;
As it was in the beginning, is now, and ever shall be: world without end. Amen.
Note: That the Psalter followeth the Division of the Hebrews, and the Translation of the great English Bible, set forth and used in the time of King Henry the Eighth, and Edward the Sixth.
Text from The Book of Common Prayer, the rights in which are vested in the Crown,
is reproduced by permission of the Crown's Patentee, Cambridge University Press.