The reason given for all this, in not defiling the tabernacle, is now much stronger with believers; for now the tabernacle of GOD is with them, and he doth dwell with them. Their bodies are his temple. 1 Corinthians 6:19.
Leviticus 15:30-33
30 And the priest shall offer the one for a sin offering, and the other for a burnt offering; and the priest shall make an atonement for her before the LORD for the issue of her uncleanness.
31 Thus shall ye separate the children of Israel from their uncleanness; that they die not in their uncleanness, when they defile my tabernacle that is among them.
32 This is the law of him that hath an issue, and of him whose seed goeth from him, and is defiled therewith;
33 And of her that is sick of her flowers, and of him that hath an issue, of the man, and of the woman, and of him that lieth with her that is unclean.