and to offer a sacrifice according to that which is said in the law of the Lord, "A pair of turtledoves, or two young pigeons."
The third ceremony was the ritual purification of the mother after childbirth. In the case of a male child this took place forty days after the birth, when the mother presented a lamb for a burnt offering and a bird for a sin offering. If she was too poor to afford a lamb she could offer another bird instead (see Leviticus 12:1-8).