Luke 2:22-24,

just as it is written in Jehovah’s law: ‘Every male opening a womb must be called holy to Jehovah,’

Another requirement, which emphasized that mankind was sinful and passed on imperfection through childbirth, called for the purification of a woman after she gave birth. If her child was a male, she was unclean for 40 days, and 80 days in the case of a female child.