Gen 7:1-3 Then the Lord said to Noah, “Go into the ark, you and all your household, for I have seen that you are righteous before me in this generation.
2Take with you SEVEN PAIRS OF ALL CLEAN ANIMALS, the male & his mate AND a PAIR of the animals that are NOT CLEAN, the male & his mate & SEVEN PAIRS OF THE BIRDS of the heavens also, male & female, to keep their offspring alive on the face of all the earth.
Gen 8:1 But God remembered Noah AND all the beasts AND all the livestock that were with him in the ark.
Gen 8:20 Then Noah built an altar to the Lord & took some of every CLEAN animal AND some of every CLEAN bird & offered burnt offerings on the altar.
Leviticus 11:46-49 This is the law regarding animals, birds, all living creatures that move in the water & all creatures that crawl along the ground. You must distinguish between the unclean and the clean, between animals that may be eaten and those that may not.
Leviticus 20:24-26 But I have told you that you will inherit their land, since I will give it to you as an inheritance—a land flowing with milk and honey. I am the LORD your God, who has set you apart from the peoples. 25
You are therefore to distinguish between clean and unclean animals and birds. Do not become contaminated by any animal or bird, or by anything that crawls on the ground; I have set these apart as unclean for you. 26You are to be holy to Me because I, the LORD, am holy, and I have set you apart from the nations to be My own.
Leviticus 10:9-11 You & your sons {priests} are not to drink wine or strong drink when you enter the Tent of Meeting, or else you will die; this is a perpetual statute for the generations to come. You must distinguish between the holy and the common, between the clean and the unclean, so that you may teach the Israelites all the statutes that the LORD has given them through Moses.”
Ezek 22:26 Her priests do violence to My law & profane My holy things. They make no distinction between the holy & the common, & they fail to distinguish between the clean & the unclean. They disregard My Sabbaths, so that I am profaned among them.
Daniel 1:8 But Daniel resolved in his heart that he would not defile himself with the king's food or wine. So he asked the chief official for permission not to defile himself.
Ezek 44:20-24 No priest may drink wine before he enters the inner court. And they shall not marry a widow or a divorced woman, but must marry a virgin of the descendants of the house of Israel, or a widow of a priest. They are to teach My people the difference between the holy & the common & show them how to discern between the clean & the unclean.