Leviticus 10:10
You must distinguish between the holy and the common, between the clean and the unclean,

Leviticus 11:46
This is the law regarding animals, birds, all living creatures that move in the water, and all creatures that crawl along the ground.

Leviticus 12:1
Then the LORD said to Moses,

Ezekiel 22:26
Her priests do violence to My law and profane My holy things. They make no distinction between the holy and the common, and they fail to distinguish between the clean and the unclean. They disregard My Sabbaths, so that I am profaned among them.

Ezekiel 44:23
They are to teach My people the difference between the holy and the common, and show them how to discern between the clean and the unclean.

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.