On the eighth day after His Nativity, our Lord Jesus Christ was circumcised in accordance with the Old Testament Law. All male infants underwent circumcision as a sign of God’s Covenant with the holy Forefather Abraham and his descendants
Genesis 17:10-14 (KJV)
10 This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.
11 And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.
12 And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.
13 He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
14 And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.
Leviticus 12:1-3 (KJV)
1 And the LORD spake unto Moses, saying,
2 Speak unto the children of Israel, saying, If a woman have conceived seed, and born a man child: then she shall be unclean seven days; according to the days of the separation for her infirmity shall she be unclean.
3 And in the eighth day the flesh of his foreskin shall be circumcised.
After this ritual, the Divine Infant was given the name Jesus, as the Archangel Gabriel declared on the day of the Annunciation to the Most Holy Theotokos [Luke 1:31-33, 2:21]. The Fathers of the Church explain that the Lord, the Creator of the Law, underwent circumcision in order to give people an example of how faithfully the divine ordinances ought to be fulfilled. The Lord was circumcised so that later no one would doubt that He had truly assumed human flesh, and that His Incarnation was not merely an illusion, as certain heretics had taught.
In the New Testament, the ritual of circumcision gave way to the Mystery of Baptism, which it prefigured [Colossians 2:11-12]. Accounts of the Feast of the Circumcision of the Lord continue in the Eastern Church right up through the fourth century. The Canon of the Feast was written by Saint Stephen of the Saint Sava Monastery.
In addition to circumcision, which the Lord accepted as a sign of God’s Covenant with mankind, He also received the Name Jesus [Savior] on the eighth day after His Nativity as an indication of His service, the work of the salvation of the world.
Matthew 1:21 (KJV)
21 And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins.
Philippians 2:5-11 (KJV)
5 Let this mind be in you, which was also in Christ Jesus:
6 Who, being in the form of God, thought it not robbery to be equal with God:
7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:
8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
9 Wherefore God also hath highly exalted him, and given him a name which is above every name:
10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;
11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.
These two events — the Lord’s Circumcision and Naming — remind Christians that they have entered into a New Covenant with God and “are circumcised with a circumcision made without hands, in putting off the body of the sins of the flesh by the circumcision of Christ” [Colossians 2:11]. The very name “Christian” is a sign of mankind’s entrance into a New Covenant with God.