Leviticus 11:31; Leviticus 11:32; Leviticus 16:1

Leviticus 11:31

31 'These are to you the unclean among all the swarming things; whoever touches them when they are dead becomes unclean until evening.

Leviticus 11:32

32 'Also anything on which one of them may fall when they are dead becomes unclean, including any wooden article, or clothing, or a skin, or a sack -any article of which use is made -it shall be put in the water and be unclean until evening, then it becomes clean.

Leviticus 16:1

1 Now the LORD spoke to Moses after the death of the two sons of Aaron, when they had approached the presence of the LORD and died.