The Ancient of Days, who in times past gave Moses the Law on Sinai, appears this day as a babe. As Maker of the Law He fulfills the Law, and according to the Law He is brought into the temple and given over to the Elder.
-Anatolios, Festal Menaion. Great Vespers.

The God of all goodness
Did not disdain to be circumcised.
He offered Himself as a saving sign
And exmple for us all.
He fulfilled the words of the prophets concerning Himself.
He holds the world in His hands,
Yet is bound in swaddling clothes.
Let us glorify Him.
-Vespers of the feast of the Lord's Circumcision, Tranlsation found in "The Winter Pascha" by Fr. Thomas Hopko SVS Press

Circumcision has ceased,
For Christ was circumcised of His own will,
Granting the nations remission of sins,
And saving them by grace.
-Orthros of the feast of the Lord's Circumcison

The eighth day,
The day on which Christ the Master was circumcised in the flesh,
Portrays the eternal life of the age to come.
-Orthros of the feast of our Lord's Circumcision, Translation from "The Winter Pascha" by Fr. Thomas Hopko SVS Press

He who without separation and corruption
Was born ineffably as the Word of the Father,
Who is God from God in the changeless Godhead,
Undergoes circumcision in the flesh.
He who is above the law
Delivers all from the curse of the law
By becoming Himself under the law
And giving us blessings from on high.
Therefore we praise His infinitely gracious condescension,
We sing His praises,
And we glorify Him with thanksgiving,
Entreating Him that our souls may be saved.
-Orthros of the Feast of Our Lord's Circumcision, Translation from "The Winter Pascha" by Fr. Thomas Hopko SVS Press