Robert Jamieson, A. R. Fausset, David Brown’s Jamieson-Fausset-Brown Commentary (1871)

Leviticus 12

Verse 2

2Speak unto the children of Israel, saying, If a woman have conceived seed, and born a man child: then she shall be unclean seven days; according to the days of the separation for her infirmity shall she be unclean.

Le 12:1-8. Woman’s Uncleanness by Childbirth. 2. If a woman, &c.--The mother of a boy was ceremonially unclean for a week, at the end of which the child was circumcised (Ge 17:12; Ro 4:11-13); the mother of a girl for two weeks (Le 12:5)--a stigma on the sex (1Ti 2:14, 15) for sin, which was removed by Christ; everyone who came near her during that time contracted a similar defilement. After these periods, visitors might approach her though she was still excluded from the public ordinances of religion [Le 12:4].

Verses 6–8

6And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt offering, and a young pigeon, or a turtledove, for a sin offering, unto the door of the tabernacle of the congregation, unto the priest:

7Who shall offer it before the LORD, and make an atonement for her; and she shall be cleansed from the issue of her blood. This is the law for her that hath born a male or a female.

8And if she be not able to bring a lamb, then she shall bring two turtles, or two young pigeons; the one for the burnt offering, and the other for a sin offering: and the priest shall make an atonement for her, and she shall be clean.

6-8. the days of her purifying--Though the occasion was of a festive character, yet the sacrifices appointed were not a peace offering, but a burnt offering and sin offering, in order to impress the mind of the parent with recollections of the origin of sin, and that the child inherited a fallen and sinful nature. The offerings were to be presented the day after the period of her separation had ended--that is, forty-first for a boy, eighty-first for a girl.