Leviticus 15:28-31

28But if she be cleansedH2891 of her issue, then she shall number to herself sevenH7651 daysH3117, and after that she shall be cleanH2891. 29And on the eighthH8066 dayH3117 she shall takeH3947 unto her twoH8147 turtle-doves, or twoH8147 youngH1121 pigeons, and bringH935 them unto the priestH3548, to the doorH6607 of the tentH168 of meetingH4150. 30And the priestH3548 shall offerH6213 the oneH259 for a sin-offering, and the other for a burnt-offering; and the priestH3548 shall makeH6213 atonementH3722 for her before Jehovah for the issue of her uncleannessH2932.

31Thus shall ye separate the children of IsraelH3478 from their uncleannessH2932, that they dieH4191 not in their uncleannessH2932, whenH834 they defileH2930 my tabernacleH4908 that is in the midstH8432 of them.