What the instruction says
Leviticus 11 and Deuteronomy 14 answer one question: of all the living things God made, which did he give us as food? The answer comes by kind, with clear markers.
“These are the living things which you may eat among all the animals that are on the earth. Whatever parts the hoof, and is cloven-footed, and chews the cud among the animals, that you may eat.”
Leviticus 11:2-3
Land animals need both marks, a split hoof and chewing the cud. The chapter names animals with only one, and the pig is among them.
“The pig, because it has a split hoof, and is cloven-footed, but doesn’t chew the cud, is unclean to you. You shall not eat their meat. You shall not touch their carcasses. They are unclean to you.”
Leviticus 11:7-8
Water creatures need fins and scales (Leviticus 11:9-12); birds are handled by a list of exclusions, mostly birds of prey and scavengers (Leviticus 11:13-19); of insects, only certain hopping kinds are permitted (Leviticus 11:20-23). Deuteronomy 14 repeats the same categories under one summary: “You shall not eat any abominable thing” (Deuteronomy 14:3). Leviticus names its own purpose: “to make a distinction between the unclean and the clean, and between the living thing that may be eaten and the living thing that may not be eaten” (Leviticus 11:47).
Being unclean is not the same as sinning; touching a carcass made a person unclean until evening and mattered for approaching the sanctuary. Eating what God did not give as food breaks a commandment, which is what Scripture calls sin (1 John 3:4).
Older than Sinai
The distinction was not introduced at Sinai. Noah knew it long before there was an Israel.
“You shall take seven pairs of every clean animal with you, the male and his female. Of the animals that are not clean, take two, the male and his female.”
Genesis 7:2
When the flood ended, Noah “took of every clean animal, and of every clean bird” for his offering (Genesis 8:20). Nobody explained the terms to him. The categories belong to how the Creator sorted his creation, not to one nation’s later ceremony.
Why it matters: holiness
The chapter itself tells us why, and the reason is not hygiene. It is who God is and whose we are.
“For I am the LORD your God. Sanctify yourselves therefore, and be holy; for I am holy. You shall not defile yourselves with any kind of creeping thing that moves on the earth. For I am the LORD who brought you up out of the land of Egypt, to be your God. You shall therefore be holy, for I am holy.”
Leviticus 11:44-45
Leviticus 20:25-26 ties the same distinction to God’s having set his people apart from the nations. Peter reaches for the very refrain: “You shall be holy, for I am holy” (1 Peter 1:15-16). He is quoting Leviticus, including the food chapter. None of this earns salvation, which is by grace through faith (Ephesians 2:8-10). It is what holiness looks like at the table.
Still an issue at the end of the age
If the dietary instruction expired at the cross, it is strange that Isaiah places it among the sins judged at the end of the age. Isaiah 65:4 lists those who “eat pig’s meat” among the rebellious, and the final chapter, beside the new heavens and the new earth (Isaiah 66:22), says this.
“Those who sanctify themselves and purify themselves to go to the gardens, following one in the middle, eating pig’s meat, abominable things, and the mouse, they shall come to an end together,” says the LORD.”
Isaiah 66:17
The next verse has all flesh worshiping from Sabbath to Sabbath (Isaiah 66:23). Isaiah does not expect the line between food and not-food to fade before then.
Peter’s vision, read by Peter
Acts 10 is the passage most people reach for.
“A voice came to him, “Rise, Peter, kill and eat!” But Peter said, “Not so, Lord; for I have never eaten anything that is common or unclean.” A voice came to him again the second time, “What God has cleansed, you must not call unclean.”
Acts 10:13-15
Three things stand out. First, this is years after the resurrection, and Peter says he has never eaten anything common or unclean. If Jesus had abolished the food laws, the man who walked with him for three years never heard about it. Second, Peter did not take the vision as a menu; he was “very perplexed in himself what the vision which he had seen might mean” (Acts 10:17), just as the messengers from Cornelius, a Gentile, arrived at the gate. Third, Peter tells us himself what it meant.
“You yourselves know how it is an unlawful thing for a man who is a Jew to join himself or come to one of another nation, but God has shown me that I shouldn’t call any man unholy or unclean.”
Acts 10:28
When he recounts the vision in Jerusalem he says it the same way (Acts 11:8), and the church’s conclusion is that “God has also granted to the Gentiles repentance to life” (Acts 11:18). The vision was about people. No one in Acts 10 or 11 eats anything.
Mark 7 in context
The dispute in Mark 7 begins with a specific complaint.
“Then the Pharisees and some of the scribes gathered together to him, having come from Jerusalem. Now when they saw some of his disciples eating bread with defiled, that is unwashed, hands, they found fault. (For the Pharisees and all the Jews don’t eat unless they wash their hands and forearms, holding to the tradition of the elders. They don’t eat when they come from the marketplace unless they bathe themselves, and there are many other things which they have received to hold to: washings of cups, pitchers, bronze vessels, and couches.) The Pharisees and the scribes asked him, “Why don’t your disciples walk according to the tradition of the elders, but eat their bread with unwashed hands?”
Mark 7:1-5
The subject is hand-washing, a tradition of the elders that the Torah never commands. Jesus answers by charging them with setting aside the commandment of God to keep their tradition (Mark 7:6-13). He would hardly set aside a commandment of God in the same breath. His point is that unwashed hands cannot make bread unclean, because food does not touch the heart.
“Are you also without understanding? Don’t you perceive that whatever goes into the man from outside can’t defile him, because it doesn’t go into his heart, but into his stomach, then into the latrine, making all foods clean?”
Mark 7:18-19
Many modern translations close that verse with a parenthesis saying that Jesus thereby declared all foods clean. The words “he declared” are not in the Greek; they interpret a participle that the WEB renders more plainly as the body’s own process, “making all foods clean.” Either way, the word is foods. In that room, among Torah-keeping Jews, pork was on nobody’s list of foods, and nobody was asking about it. Matthew’s parallel closes with the actual topic: “to eat with unwashed hands doesn’t defile the man” (Matthew 15:20).
Romans 14 and 1 Timothy 4
Paul’s letters need the same care.
“One man has faith to eat all things, but he who is weak eats only vegetables. Don’t let him who eats despise him who doesn’t eat. Don’t let him who doesn’t eat judge him who eats, for God has accepted him.”
Romans 14:2-3
The dispute in Rome is between eating meat and eating only vegetables, and between honoring certain days and not (Romans 14:5-6). Paul calls these “disputes over opinions” (Romans 14:1). Leviticus 11 is not an opinion; it is a commandment, and Paul says elsewhere that the law is holy and that faith establishes it (Romans 7:12; 3:31). The question in Rome is most likely about meat that had passed through pagan markets (compare 1 Corinthians 8 and 10). And when Paul says “nothing is unclean of itself” (Romans 14:14), the Greek word is koinos, “common”, the word Peter sets alongside “unclean” in Acts 10:14 as a separate category. Paul is talking about clean food made doubtful by its history, not about pork.
1 Timothy 4 is the same. The false teachers there were “forbidding marriage and commanding to abstain from foods which God created to be received with thanksgiving” (1 Timothy 4:3). Then Paul writes this.
“For every creature of God is good, and nothing is to be rejected if it is received with thanksgiving. For it is sanctified through the word of God and prayer.”
1 Timothy 4:4-5
Every creature of God is good. A horse is good; so is an eagle. That does not make them food. What makes something food, Paul says, is that it is “sanctified through the word of God”, and the word of God is where the list is written. He is defending believers who eat the clean meats God gave against teachers who would take even those away. Even the letter to new Gentile believers in Acts 15 keeps them from blood and things strangled (Acts 15:20, 29), both Torah instructions.