Lectionary Cycle
The Lectionary in the BCP and other contemporary lectionaries use a three-year cycle, referred to as Years A, B, and C. Year A begins on the First Sunday in Advent in years evenly divisible by three (e.g., 2001). The Daily Office lectionary follows a two-year cycle. Year One begins on the First Sunday in Advent preceding odd-numbered years and Year Two even-numbered years. In the eucharistic lectionary the Gospel According to Matthew is read in Year A, Mark in Year B, and Luke in Year C. The Gospel According to John is used during Lent and Easter, and on some Sundays in Year B, since Mark is shorter than the other gospels.
Glossary definitions provided courtesy of Church Publishing Incorporated, New York, NY,(All Rights reserved) from “An Episcopal Dictionary of the Church, A User Friendly Reference for Episcopalians,” Don S. Armentrout and Robert Boak Slocum, editors.