Numbers 19:13

‘Or a person who touches any unclean thing, whether a carcass of an unclean beast or the carcass of unclean cattle or a carcass of unclean swarming things—though it is hidden from him, yet he is unclean—will be guilty.

‘But the person who eats the flesh of the sacrifice of peace offerings which belong to Yahweh, in his uncleanness, that person shall be cut off from his people.

“Thus you shall keep the sons of Israel separated from their uncleanness, so that they will not die in their uncleanness by making My tabernacle that is among them unclean.”

“Say to them, ‘If any man among all your seed throughout your generations comes near to the holy gifts which the sons of Israel set apart as holy to Yahweh, and he has an uncleanness, that person shall be cut off from before Me; I am Yahweh.

‘All the days of his dedication as a Nazirite to Yahweh he shall not go near to a dead person.

“Thus you shall do to them, for their cleansing: sprinkle purifying water on them, and let them use a razor over their whole body and wash their clothes, and they will be clean.

But there were some men who were unclean because of a dead person, so that they could not celebrate Passover on that day; so they came near before Moses and Aaron on that day.

‘But the man who is unclean and does not purify himself from uncleanness, that person shall be cut off from the midst of the assembly because he has made the sanctuary of Yahweh unclean; the water for impurity has not been splashed on him; he is unclean.

“And you, camp outside the camp seven days; whoever has killed any person and whoever has touched any slain, purify yourselves, you and your captives, on the third day and on the seventh day.

“And after he is cleansed, seven days shall be counted for him.

since they relate only to food and drink and various washings, requirements for the body imposed until a time of reformation.