'Purification' in the Bible

For 33 days after this, she is to remain in purification due to her blood loss. She is not to touch any sacred thing or enter the sanctuary until the days of her purification have been completed.

"If she gives birth to a female, then she is to remain unclean for two weeks, just like her menstruation. She is to remain in purification for 66 days due to her blood loss.

When the days of her purification have been completed, whether for her son or daughter, she is to bring to the priest at the entrance to the Tent of Meeting a one year old lamb for a whole burnt offering or a young dove for a sin offering.