In the Bible, menstruation is primarily treated in the Old Testament (specifically Leviticus 15 and 18) as a source of ritual impurity, designating a woman unclean for seven days and requiring purification. This status restricted access to the sanctuary but did not signify moral sin. It symbolizes the separation of life and death, reflecting the consequences of the Fall while, in a broader theological view, pointing toward the need for redemption.
Key Aspects of Biblical Menstruation:
Ritual Impurity (Niddah): A menstruating woman was considered unclean for seven days, and anyone or anything she touched was also rendered unclean until evening. This was not a moral judgment or sin, but a state of being "unfit" for the holy space.
Sexual Prohibition: Sexual intercourse during menstruation was strictly forbidden, with both parties facing being "cut off" from the community for violating these laws.
Symbolism of Blood: Blood represents life (Leviticus 17:14), and its loss was associated with the curse of death arising from the Fall.
Purpose of Laws: These regulations, as explained by and, may have served to create a tangible reminder of the need for holiness and the separation between the sacred and the profane, or as a form of protection, allowing women rest during their cycle.
Metaphorical Use: The "impurity of a woman in her impurity" is used by prophets (e.g., Ezekiel 36:17) to describe the moral defilement of the nation of Israel.
New Testament Shift:
In the New Testament, ceremonial laws of purity are often viewed as fulfilled through Jesus Christ, who cleansed humanity from sin. This is highlighted in the healing of the woman with the issue of blood (Luke 8:43-48), where Jesus acknowledges her touch, demonstrating that the rigid uncleanness laws do not apply in the same way under grace.