This is one of those passages that make a lot of people go, “Huh?”
To be honest, probably most of the Israelites themselves said, “Huh?” when they heard these commands.
Looking at these commands, they can seem so anal. Why would God command all that he did concerning “clean” and “unclean” things?
I think that essentially, God was teaching the Israelites to think as he did. Namely, that despite what the world thinks, there are things that are unclean and unclean.
There are things that we must despise as God’s holy people. And if touched by these things, we must be cleansed and atoned for.
And to drill that idea into their heads, God put the concept into their everyday lives. Into what they ate. Into normal bodily functions. And into skin diseases that could strike anyone. Into mold that could invade clothing or house walls.
All these were daily reminders to the Israelites: “You are different. You are not to think as others think. There are things you must despise, because if they touch you, they can make you unclean, and separate you from your God.”
And so God, for example, told the Israelites to avoid eating or even touching certain animals. He said, “They are to be abhorrent…to you. They are unclean…to you.” (Count or underline how many times this is said).
In short, God was saying, “To others, these things might not be abhorrent. To some, these things might be attractive. To some, these things might be delicious. But to you, they are to be abhorrent.”
In this world, there are sins that are attractive to the people around us. Extra-marital sex and porn for example. And when people see our reaction to these things, they can’t understand it. “Why are you disgusted by these things? They are so delicious!”
But they are things that make us unclean in the eyes of God. And they cut us off from a relationship with him. And because we love God so much, the things that are abhorrent to him, also become abhorrent to us. They become disgusting in our eyes. At least…they should.
And as God told the Israelites not to be contaminated and defiled by these foods, he tells us that as his people, we are not to be contaminated and defiled by the sins this world treats as normal, or even delightful.
Time and again, the words, “washing” and “atonement” are mentioned in this passage. (Try counting or underlining these words too). And this was just for contact with animals, for diseases, and bodily functions.
How much more are washing and atonement needed for our sin which truly makes us unclean before God?
Some contaminated things could be washed with no lasting effects. Others, however, were considered to be forever stained and were broken forever as a result. (Leviticus 11:31-35, 14:33-48).
Sin is the same way. Some effects of sin can cause temporary damage, but by God’s grace, those effects are taken away and forgotten.
Others sins, however, cause permanent damage that cannot be simply washed away. People’s bodies have been permanently damaged by drugs, for example. Marriages and families have been destroyed by adultery.
Other times, sin leaves scars, although the people themselves have been cleansed. (13:23, 13:28)
Ultimately, though, the point of these things is found in chapter 11:44-45.
Do not become contaminated…do not become unclean or defiled by [unclean things]. For I am the Lord your God, so you must consecrate yourselves and be holy because I am holy. Do not defile yourselves…
For I am the Lord, who brought you up from the land of Egypt to be your God, so you must be holy because I am holy.
Do you consecrate yourselves daily to the Lord? Or do you let yourself be defiled by what the world calls normal or even delightful?