And so the Child was circumcised. Who is this Child, unless He of Whom it was said: a Child is born to us, a son is given to us? (Is. ix.6). He was made under the Law, that He might redeem those Who were under the Law (Gal. iv. 4, 5). To present Him to the Lord. What it means to be presented to the Lord in Jerusalem I would explain but that I have already spoken of it in the commentary on Isaias. For He was circumcised with the vices (Gal. v. 24), and is judged worthy to be looked upon by the Lord: the eyes of the Lord are upon the just (Ps. 33.16). You see how every practice of the Old Law was a figure of that to come; for circumcision was a sign of the forgiveness of our sins.
- St. Ambrose, on the Gospel (Toal, I:189)