The following is my translation of the notes and useful applications for the Holy Gospel of the Feast of the Circumcision and Name of Jesus, Luke 2:21, as they are found in Das Weimarische Bibelwerk (1877). Square brackets indicate my own notes and additions. For the useful applications, I recommend the reader see this very helpful article by Dr. Benjamin T. G. Mayes.

II. Concerning the Circumcision of Christ. (v. 21)
Annotated Text
21. And when it was about the eighth day (according to the birth of Christ) for the child (Christ, according to the Law, Genesis 17:12; Leviticus 12:3) to be circumcised (because the law of circumcision only pertains to those men who are conceived and born in sin, Christ was therefore not subject to this law according to His person, but had made Himself subject to the Law for our sake in order to redeem us, who were under the Law, and so that we might receive sonship, Galatians 4:4–5; and the holy drops of blood which He shed in His circumcision, as it were, were the down payment for our redemption, since He obliged Himself to render full satisfaction and payment in His time; after this, He had wanted to prove with His circumcision that He was a true man and was born from Abraham’s lineage), then was1 His name called Jesus, * which He was called by the angel (Gabriel), before He was conceived then in His mother’s womb.
1 Greek: “also” [καὶ] (beyond the fact that He was circumcised)
* Luke 1:31 (Matthew 1:21)
Useful Applications
II. COMFORT: The name of Jesus means so much as Savior or Helper, because through His holy merit help is given to us from the devil and the power of hell, and because eternal salvation has been bestowed to believers. (v. 21)