Numbers 19:2-9

2“This is a requirement of the law that the Lord has commanded: Tell the Israelites to bring you a red heifer without defect or blemish and that has never been under a yoke. 3Give it to Eleazar the priest; it is to be taken outside the camp and slaughtered in his presence. 4Then Eleazar the priest is to take some of its blood on his finger and sprinkle it seven times toward the front of the tent of meeting. 5While he watches, the heifer is to be burned—its hide, flesh, blood and intestines. 6The priest is to take some cedar wood, hyssop and scarlet wool and throw them onto the burning heifer. 7After that, the priest must wash his clothes and bathe himself with water. He may then come into the camp, but he will be ceremonially unclean till evening. 8The man who burns it must also wash his clothes and bathe with water, and he too will be unclean till evening. 9“A man who is clean shall gather up the ashes of the heifer and put them in a ceremonially clean place outside the camp. They are to be kept by the Israelite community for use in the water of cleansing; it is for purification from sin.