Leviticus 5:3

Or if he touches the uncleanness of man, whatever uncleanness it is that a man shall be defiled with, and it is hid from him, if afterward he should know of it, then he shall be guilty.

Leviticus 12:1-8

And the LORD spoke unto Moses, saying,

Leviticus 15:1-33

And the LORD spoke unto Moses and to Aaron, saying,

Numbers 19:11-16

He that touches the dead body of any human person shall be unclean seven days.

Leviticus 22:4-6

Whatever man of the seed of Aaron who is a leper or has a running issue shall not eat of the holy things until he is clean. And whosoever touches any thing that is unclean by the dead or a man whose seed has gone out from him

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