Leviticus 12:4
The woman shall continue in purification from her bleeding for thirty-three days. She must not touch anything sacred or go into the sanctuary until the days of her purification are complete.
Berean Standard Bible
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And she shall then continue in the blood of her purifying three and thirty days; she shall touch no hallowed thing, nor come into the sanctuary, until the days of her purifying be fulfilled.
She shall continue in the blood of purification thirty-three days. She shall not touch any holy thing, nor come into the sanctuary, until the days of her purifying are completed.