Mainline Protestant preachers often follow the Revised Standard Lectionary. It gives them four Bible readings for every Sunday of the year. It follows a three-year cycle, years A, B, and C. There are many advantages to the lectionary. It follows the church year. It helps to keep preachers from preaching all the time from a narrow part of the Bible that may be a hobby-horse–or from not preaching from the Bible at all.
I have complained about the lectionary that it leaves out many parts of the Bible. Now Timothy Matthew Slemmons has published Year D: A Quadrennial Supplement to the Revised Common Lectionary. According to the editorial review at Amazon:
“‘Year D’ makes the case for the need and promise of supplementing the Revised Common Lectionary with a fourth year of lections and arranges many previously excluded biblical texts in an orderly, one-year preaching plan. It fills a need widely voiced by preachers that the lectionary effectively limits and censors the functional canon of Scripture.”
All I can say is Hurray! I hope many take advantage of this.