Numbers 19:18-20

New Century Version

¹⁸ A clean person must take a hyssop branch and dip it into the water, and then he must sprinkle it over the tent and all its objects. He must also sprinkle the people who were there, as well as anyone who touched a bone, or the body of someone who was killed, or a dead person, or a grave. ¹⁹ The person who is clean must sprinkle this water on the unclean people on the third day and on the seventh day. On the seventh day they will become clean. They must wash their clothes and take a bath, and they will be clean that evening. ²⁰ If any who are unclean do not become clean, they must be cut off from the community. Since they were not sprinkled with the cleansing water, they stay unclean, and they could make the Lord’s Holy Tent unclean.