When eight days were fulfilled for the circumcision of the child, his name was called Jesus, which was given by the angel before he was conceived in the womb.
Since the purification of Mary, mentioned a little later, and the circumcision of Christ were commandments of the law, they were obeyed. Barnes pointed out that just as Christ was baptized to "fulfill all righteousness"  (Matthew 3:15), it was also proper that he should have been circumcised.  "It is necessary for the future usefulness of Christ; without it, he could not have entered any synagogue, or had access to the people, or have been regarded as the Messiah."[22]