The Church this day celebrates the Festival of the circumcision of our LORD JESUS CHRIST, who, when eight days were accomplished, subjected himself to this rite.
The first Lesson for the morning gives an account of the institution of circumcision. The first Lesson for the evening, both the second Lessons, and the Epistle, tend to show, that though the circumcision of the flesh is abrogated, GOD still requires that circumcision of the heart, which the external rite denoted and enforced. The Gospel records the circumcision of our blessed Saviour, and the divine and sacred name which was then imposed upon him.
[Excerpt from John Henry Hobart, A Companion for the Book of Common Prayer, Containing an Explanation of the Service (1859), 80-81.]