As always, the time for panic about Jewish religious identity is now.

That’s been true for some 3,000 years. Judaism has never been great at retaining a crowd. Since the Exodus from Egypt, Jews have been fractured and fractious; censuses of the Jews in the books of Exodus and Numbers famously show identical numbers, despite the passage of years. Even when we’re not assimilating, we’re winnowing out ourselves somehow.

But a new poll from Public Religion Research Institute (PRRI) shows that American Jews younger than 30 are particularly unlikely to identify as religiously Jewish (47 percent); the rest identify as culturally Jewish. That contrasts sharply with Jewish seniors, who identify as religiously Jewish rather than culturally Jewish by a 78 percent to 22 percent margin. Furthermore, fully 37 percent of all Jews in the United States refuse to identify an affiliation with a particular religious movement; they identify as “just Jewish.”

These numbers aren’t particularly shocking — another PRRI poll from 2012 showed that only 17 percent of Jews found their Jewish identity in religious observance, and only 6 percent found that identity in cultural heritage or tradition. Most shocking, only 3 percent said they found a general set of values in Judaism. Fully 46 percent cited a belief in “social equality” separate from Judaism as somehow creating a Jewish identity.

The effort to somehow carve off Jewish religious activity from Judaism has been ongoing since the Enlightenment. But it’s a project destined to fail. That’s because the unifying factor among Jews has been religion. Trash the Torah, trash the identity. We can find values of social justice in John Rawls or Robert Nozick; we can find “culture” in Woody Allen movies. But we can’t find a common identity.

Jewish identity isn’t merely a shared reference to a set of movies or foods. It’s a set of values springing from religious identity — from God. That doesn’t mean that you have to keep kosher or turn off your phone on Sabbath to experience Jewish identity.

But it does mean that you have to respect the notion that Judaism is concerned with such matters — and more importantly, that Judaism reflects God’s immanence in the world, and that the revelation of His presence passed down from generation to generation is worth honoring.

Over the course of the holiday season, beginning with Rosh Hashanah, we work to recognize this truth. And then we celebrate this truth during Sukkot. When we sit together in the sukkah, we aren’t just eating good food and enjoying good friends. We’re not just hanging out with family. Sukkot isn’t an outdoor meal at the Olive Garden. It’s a representation of the fragility of our world — a metaphor rebuking materialism. It’s a reminder that all the things we value mean nothing without the God who infuses our lives.

And it is our task, collectively and individually, to experience the joy of knowing God. The Torah commands us no fewer than three times to rejoice on this holiday. And as Maimonides says in “Guide for the Perplexed,” we have the capacity to experience joy in what we understand of God, when we turn our intellects to Him.

Jewish identity isn’t merely a shared reference to a set of movies or foods. It’s a set of values springing from religious identity — from god.

So, how do we understand God on Sukkot?

First, we understand that there is a meaning behind the material world. Atheist materialism posits that we live in an accidental universe devoid of meaning, and wander through it alone in deterministic fashion. Sukkot and the history of the Jewish people rebuke this notion. We are participants in history, and our participation matters. We know the sukkah is temporary, but we beautify it anyway because we have been commanded to do so.

This is a uniquely Judaic notion, and one that animates even the most atheistic, secular Jews who spend inordinate amounts of time fretting over “social justice.” Why bother unless we have independence of action and a mandate to better our world?

Second, we understand that our heritage doesn’t spring from ourselves. We honor our ancestors with the ushpizin — we remember Abraham, Isaac, Jacob, Moses, Aaron, Joseph and David. We are not the source of our tradition or our values. They come from a more ancient source.

Finally, we understand that God cares about all of us. We are commanded to pick up the lulav (palm frond), along with the hadas (myrtle) and the aravah (willow) and the etrog (citron). According to the midrash, the lulav represents those who study Torah but do not do mitzvot; the hadas represents those who do mitzvot but do not study; the aravah represents those who do not study Torah and do not do mitzvot; the etrog represents those who both study and do mitzvot. Why not pay homage to God with the etrog alone, then? Because the Jewish people are composed of all of these sorts of people — and only together, recognizing our inherent worth and value to God, can we stand before our Creator. We can’t leave one another behind.

All of which means that Sukkot is an ideal time to reach out to our fellow Jews who see themselves as cultural. God doesn’t care; they are welcome in the sukkah. It is their job to join with us, no matter our different priorities; it is our job to infuse our sukkah with light, so that they may see a world filled with the presence of God, not merely an ancient superstition with bagels and lox.

BEN SHAPIRO is editor-in-chief at The Daily Wire, host of the most listened-to conservative podcast in the nation, “The Ben Shapiro Show,” and author of The New York Times best-seller “Bullies: How the Left’s Culture of Fear Silences Americans.”