Leviticus 10:10 commands priests to distinguish holy/common and unclean/clean; here the same purpose is stated for dietary laws.

Leviticus 15:31 reinforces the need to separate people from uncleanness, directly linking to the distinction made here.

Ezekiel 44:23 specifies that priests must teach the difference between clean and unclean, directly echoing the distinction defined here.

Ezekiel 22:26 condemns priests for failing to distinguish clean/unclean — the very duty commanded here.

In Acts 11:8, Peter cites this law to explain his reluctance to eat unclean foods — showing its continued observance.

Judges 13:4 applies the clean/unclean distinction by commanding Samson's mother to eat nothing unclean.

Isaiah 52:11 calls for departing from Babylon and touching no unclean thing, echoing the separation principle here.

Malachi 3:18 shifts the distinction from ritual clean/unclean to moral righteous/wicked, applying the same concept of separation to ethical behavior.