The liturgical calendar also has an accompanying lectionary – a set of verses tied to each Sunday of the year, and to the extra celebrated days of the year of that denomination. A lectionary might be on a one year cycle, a three year cycle, etc. A lectionary by definition does not include all parts of the Bible. (Maybe there are ones which do.) It does not even have to include a lot of verses gathered together coherently on the same subject. This practice is too confining to the person who wants to learn from all of God’s Word.