And the Lord spoke to Moses and Aaron, saying:
God, who, at sundry times and in divers manners, spoke in times past to the fathers by the prophets, last of all,
For the Lord God doth nothing without revealing his secret to his servants the prophets.
That it may be known when a thing is clean or unclean.
Speak to the children of Israel, and say to them: The man that hath an issue of seed shall be unclean.
Whatsoever a person toucheth who is unclean, he shall make it unclean: and the person that toucheth any of these things shall be unclean until the evening.