Leviticus 12:2

2Speak to the people of Israel, saying, If a woman conceives and bears a male child, then ashe shall be unclean seven days. bAs at the time of her menstruation, she shall be unclean.

Leviticus 15:19

19When a woman has a discharge, and the discharge in her body is blood, she shall be in her menstrual impurity for seven days, and whoever touches her shall be unclean until the evening.

Lamentations 1:17

17 cZion stretches out her hands,
but dthere is none to comfort her;
the Lord has commanded against Jacob
that his neighbors should be his foes;
Jerusalem has become
a filthy thing among them.
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