What Deuteronomy 18 Actually Forbids

Today's Scripture

Before anyone explains or applies anything, let the oldest text on this subject speak for itself.

Deuteronomy 18:9-12 — "When you come into the land that the Lord your God is giving you, you shall not learn to follow the abominable practices of those nations. There shall not be found among you anyone who burns his son or his daughter as an offering, anyone who practices divination or tells fortunes or interprets omens, or a sorcerer or a charmer or a medium or a necromancer or one who inquires of the dead, for whoever does these things is an abomination to the Lord. And because of these abominations the Lord your God is driving them out before you."

Galatians 5:19-21 — "Now the works of the flesh are evident: sexual immorality, impurity, sensuality, idolatry, sorcery, enmity, strife, jealousy... I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God."

The Big Idea

"Occult" is an old word that simply means hidden — it covers any practice that reaches for hidden spiritual power or hidden knowledge apart from God. Scripture names these practices and forbids them, and not one item on the list has gone out of business. But the ban is not the grumpiness of a rule-keeper. It is the jealousy of a Father who wants to speak to his children himself.

Reflection

An old list in new packaging

Notice how specific Moses is. This is not a vague warning about "bad vibes." Deuteronomy 18 names nine practices: child sacrifice, divination, fortune-telling, reading omens, sorcery, charms, mediums, necromancy, and inquiring of the dead.

Some of those words need translating. Divination means trying to pull hidden knowledge — usually about the future — out of the spiritual world. Omens are signs people "read" to learn what is coming; astrology is omen-reading with the sky. A medium claims to contact the dead or other spirits. Sorcery means using rituals, objects, or special words to bend reality to your will. And abomination is the Bible's strongest word for something God detests.

Now look around. Tarot decks sit on an endcap at Target, between the candles and the coloring books. The horoscope arrives on your phone next to the weather. Psychic mediums have streaming specials. "Manifestation" — speaking your desires out loud until the universe delivers them — fills bestseller lists. Crystals promise "energy." Every item on Moses' list is back, rebranded, and selling well. The occult did not stay next door. It moved in.

Leviticus says the same thing, but more personally. Leviticus 19:31 — "Do not turn to mediums or necromancers; do not seek them out, and so make yourselves unclean by them: I am the Lord your God." Notice the last five words. The reason given is not "because it is fake." The reason is I am the Lord your God. The command is relational before it is anything else.

So how should a Christian feel walking past that Target endcap? C.S. Lewis gave the church its best one-paragraph answer:

"There are two equal and opposite errors into which our race can fall about the devils. One is to disbelieve in their existence. The other is to believe, and to feel an excessive and unhealthy interest in them. They themselves are equally pleased by both errors and hail a materialist or a magician with the same delight." — C.S. Lewis, The Screwtape Letters

So we will not scoff, and we will not obsess. There is a real spiritual world. Parts of it are forbidden territory. For the next ten days we will walk through this clear-eyed — neither asleep nor frantic.

Not silly — unfaithful

Here is a question worth slowing down for: why does God forbid these things? He does not say "because they never work." He does not say "because they are embarrassing." The ban sits on deeper ground.

That ground is the first commandment. Exodus 20:3 — "You shall have no other gods before me." Every practice on the Deuteronomy 18 list is a way of going around God — to another source of knowledge, another source of power, another shoulder to lean on. That is what the Bible calls idolatry: treating anything other than God as your god.

Tim Keller put the definition in modern English:

"Idolatry is not just a failure to obey God, it is a setting of the whole heart on something besides God." — Tim Keller, Counterfeit Gods

Nobody bows down to a tarot deck. But people trust one. They check the cards before the hard conversation, the horoscope before the interview, the psychic before the big decision. The kneeling is optional; the depending is the worship. Martin Luther saw five hundred years ago that trust is the real test:

"Whatever your heart clings to and confides in, that is really your god." — Martin Luther, The Large Catechism

That is why Paul's list in Galatians 5:19-21 puts "sorcery" right between idolatry and enmity, in the middle of the ordinary works of the flesh. The Greek word is pharmakeia — the old trade of potions, charms, and spells. Paul does not treat it as exotic. He treats it as one more way the human heart runs from God, and he attaches the Bible's most sobering warning to the whole list: "those who do such things will not inherit the kingdom of God."

And listen again to Deuteronomy 18:13-14 — "You shall be blameless before the Lord your God, for these nations, which you are about to dispossess, listen to fortune-tellers and to diviners. But as for you, the Lord your God has not allowed you to do this." But as for you. The nations guess at the dark because they have no other option. You are not them. You belong to a God who knows you by name. The ban is a family rule, and the family is the point.

The hunger underneath the horoscope

Why is all this booming now? Surveys keep finding that astrology, tarot, and "energy work" are growing fastest among young people in the most secular places. The culture that announced it had outgrown religion did not become calmly rational. It bought crystals.

Walk through a big bookstore and you can watch the trade happen in real time. The shelf space that once held Bibles and theology now holds a wall of tarot decks, crystal guides, and books on "rituals for modern life." The hunger for the spiritual did not shrink when the culture dropped Christianity. It went shopping elsewhere.

Christians should be the least surprised people in the room. Blaise Pascal, the brilliant French mathematician of the 1600s, diagnosed the ache underneath every spiritual fad:

"What else does this craving, and this helplessness, proclaim but that there was once in man a true happiness, of which all that now remains is the empty print and trace? ... This infinite abyss can be filled only with an infinite and immutable object; in other words by God himself." — Blaise Pascal, Pensées

There is a God-sized hollow in every human being. Take away the living God and the hollow does not close; it just starts ordering off a different menu. Augustine, who spent years inside pagan religion before his conversion, said it in one sentence the church has never forgotten:

"You have made us for yourself, O Lord, and our heart is restless until it rests in you." — Augustine, Confessions

So when your coworker reads her birth chart, or your nephew saves up for a tarot deck, you are not looking at stupidity. You are looking at homesickness. The horoscope is junk food for a real hunger.

That is also why "it's just for fun" does not settle anything. Francis Schaeffer spent his life insisting that Christianity is not one private taste among many:

"Christianity is not a series of truths in the plural, but rather truth spelled with a capital 'T.' Truth about total reality, not just about religious things." — Francis Schaeffer, A Christian Manifesto

The zodiac also makes a claim about total reality — that the sky runs your story. Both claims cannot be true. You cannot keep Jesus for Sundays and the cards for Tuesdays, because each one claims every day of the week.

A voice, not a void

Now read the verse that comes immediately after the forbidden list — the verse this plan will keep returning to. Deuteronomy 18:15 — "The Lord your God will raise up for you a prophet like me from among you, from your brothers — it is to him you shall listen."

Do not miss the placement. God does not say, "No divination — now sit quietly in the dark." He says, "No divination — because I will speak." The pagan nations squinted at livers and stars because their gods had no mouths. Israel's God talks. He gives his people a prophet, and then a long line of prophets, and finally — as the apostles preached — the Prophet, Jesus himself. God's answer to the occult is not a void. It is a voice.

And that voice has not gone quiet. We hold it in our hands every time we open a Bible, and we answer it every time we pray. The Christian who is tempted to "ask the cards" already has something better on the nightstand: a God who has filled sixty-six books with everything he wants his children to know.

A.W. Tozer explains why this matters so much:

"What comes into our minds when we think about God is the most important thing about us." — A.W. Tozer, The Knowledge of the Holy

The occult shrinks the spiritual world into a tool — energy to channel, cards to consult, a universe that runs on technique. The gospel hands us something unimaginably better: a Father who knows what we need before we ask.

And the gospel does one thing more. Colossians 2:15 — at the cross, Jesus "disarmed the rulers and authorities and put them to open shame, by triumphing over them in him." Whatever real spiritual powers stand behind the forbidden practices, Christ has already beaten them — in public, in history, in his own blood. That is why the first Christians in Ephesus could pile up their expensive spell books and strike a match. Acts 19:19-20 — "And a number of those who had practiced magic arts brought their books together and burned them in the sight of all... So the word of the Lord continued to increase and prevail mightily."

They were not scared of the books. They had found something the books could never deliver. We start the week here on purpose: not with fear of the occult, but with the fullness of Christ — the Prophet who speaks, the King who has already won.

Going Deeper

Take a private, honest inventory today. List the spiritual practices that have any presence in your life or your home — apps, books, podcasts, jewelry, casual phrases ("the universe is telling me," "what's your sign?") that have drifted in from beyond Christianity. Do not judge anything yet, and do not throw anything away yet. Just see the list clearly, and read Deuteronomy 18:9-15 over it once. Tomorrow we will watch what the first Christians in Ephesus did with theirs.