When the days of their purification according to the law of Moses were fulfilled, they brought him up to Jerusalem, to present him to the Lord
For Old Testament teachings regarding the purification of women after childbirth, and the redemption of the firstborn, see: Leviticus chapter 12;  Exodus 13:2;  Numbers 8:16; 18:15.  These ceremonies are mentioned here for the sake of showing that all legal requirements under the law were carefully observed.