Leviticus 12:4

Then she will remain thirty-three days in blood purity. She must not touch anything holy and she must not enter the sanctuary until the days of her purification are fulfilled.

Leviticus 15:25-28

"'When a woman's discharge of blood flows many days not at the time of her menstruation, or if it flows beyond the time of her menstruation, all the days of her discharge of impurity will be like the days of her menstruation -- she is unclean.

Haggai 2:13

Then Haggai asked, "If a person who is ritually unclean because of touching a dead body comes in contact with one of these items, will it become unclean?" The priests answered, "It will be unclean."

Luke 2:22-23

Now when the time came for their purification according to the law of Moses, Joseph and Mary brought Jesus up to Jerusalem to present him to the Lord

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