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
Mary and Joseph complied with these regulations as observant Israelites. Mary apparently offered two birds suggesting that Mary and Joseph could not afford the more expensive lamb sacrifice. [Note: Ibid., 1:149, 195.] Luke may have mentioned this to help his readers understand the Jewish regulations. He did not stress the economic condition of Mary and Joseph.