3rd Sorrow & Joy of St. Joseph
St. Joseph is given the authority to name Jesus. Biblical names are about identities and missions. The name of Jesus reveals that He is a saviour. The circumcision indicates to us that He will accomplish that salvation through the shedding of His Precious Blood.
3rd Sorrow: The circumcision of Jesus (Luke 2:21)
3rd Joy: The bestowal of the Holy Name of Jesus (Matthew 1:20-25)