Excerpt from the Foreword "Study of the authoritative commentators on Sacred Scripture, and most particularly of the pericopes to be read out at the Sacred Liturgy has long been the custom of any of the places and communities where the celebration of the Divine Office or the "Liturgy of the Hours" is celebrated.
Just as in the Old Testament Church, so too in the Church of the New Testament, it was unthinkab.
This is true of the several liturgies of both East and West.
Excerpt from the Foreword "Study of the authoritative commentators on Sacred Scripture, and most particularly of the pericopes to be read out at the Sacred Liturgy has long been the custom of any of the places and communities where the celebration of the Divine Office or the "Liturgy of the Hours" is celebrated