From The Lectionary Page:
The Episcopal Lectionary is based on the Revised Common Lectionary, which is, itself, based on the Roman Catholic Lectionary, a product of Vatican II. So it is that, most often, the Episcopal, Lutheran, Methodist, Presbyterian, and Roman Catholic and other churches are using the same lessons, with slight variations. The lessons presented here follow the Episcopal form of the Revised Common Lectionary. (RCL). (Note: From time to time Episcopal readings differ from the “generic” RCL readings.)
The Sunday Lectionary is a three year cyclical lectionary, labeled Year A – Year B – Year C – Year A – etc. The First Sunday of Advent 2013 began Year A.
We recite Psalms from The Book of Common Prayer (USA, 1979).
Read more about the Revised Common Lectionary on The Episcopal Church website. Look up texts of readings on The Lectionary Page. Reflect on the seasons of the year – and how we celebrate them. Learn about the New Revised Standard Version (NRSV).