Luke 2:21
And when eight days were accomplished for the circumcising of the child, his name was called JESUS, which was so named of the angel before he was conceived in the womb.
Cross-reference
Luke 2:39 shows the family returned after fulfilling all requirements, including this circumcision.
Luke 1:31 gives the angel's command to name him Jesus; this verse fulfills that command.
Luke 1:59 describes John's circumcision on the eighth day – identical practice for Jesus, linking their infancy narratives.
Genesis 17:12 commands circumcision on the eighth day – Jesus' circumcision fulfills this covenant command.
Leviticus 12:3 commands circumcision on the eighth day; Jesus' parents obey this law here.
Matthew 1:21 records the angel's instruction to name him Jesus; this verse fulfills that command.
Galatians 4:4 explains Jesus was 'born under the law'; this circumcision is a key example of that subjection.
Genesis 21:4 records Abraham circumcising Isaac on the eighth day, parallel to Jesus' circumcision here.
Matthew 1:25 also records Joseph naming Jesus; here Luke places the naming at the circumcision on the eighth day.