How do I know if God is real?

Judaism has always been unusually comfortable with the question you are asking. In fact, the very name Israel, given to the patriarch Jacob after he wrestled through the night with a mysterious figure, is often translated as "one who wrestles with God." This is not a tradition that asks you to leave your doubts at the door. The rabbis argued ferociously with one another, and sometimes addressed their arguments directly to God. Doubt, in this framework, is not a failure of faith but something closer to its engine. So if you are sitting with genuine uncertainty, you are, in a strange way, already standing inside a very old Jewish conversation.

The philosophical tradition within Judaism does take seriously the question of whether God's existence can be known through reason. Medieval thinkers, above all Maimonides, argued that the universe points toward a necessary, uncaused cause, something that must exist for anything else to exist at all. But Maimonides was equally insistent that human language and concepts are hopelessly inadequate for describing what God actually is. You can reason your way toward the conclusion that there is something rather than nothing, but God, in this tradition, overflows every category you try to pour him into. The honest answer that serious Jewish philosophy often arrives at is not "here is the proof" but "here is how far reason takes you, and here is where it reaches its limit." That limit is not a dead end. It is an invitation to a different kind of knowing.

That different kind of knowing is rooted in experience and relationship, which is where the Jewish emphasis on practice becomes relevant to your question. The tradition generally holds that you do not settle the question first and then decide whether to live Jewishly. Many teachers across the centuries have suggested something closer to the reverse: live the life, observe Shabbat, study the texts, engage in acts of tzedakah and chesed, and see what you encounter along the way. The Hasidic masters in particular, figures like the Baal Shem Tov and the great teachers who followed him, taught that the divine presence, what they called the Shekhinah, is not hidden behind the world but woven through it. Awareness of that presence is something that grows in you through attention and practice, not something you either have or lack from the start.

There is also the witness of history, which carries enormous weight in Jewish thinking. The Hebrew Bible is not primarily a book of philosophical argument. It is a record of a people's ongoing encounter with a God who acts in time, who responds, who holds them to account and, at their lowest moments, brings them through. The Exodus narrative sits at the very centre of Jewish consciousness, returned to every Passover Seder, not as a distant memory but as a living claim: this happened, it shaped us, and we are still here because of it. For many Jewish people wrestling with the question of God's reality, the survival of the Jewish people through millennia of persecution is itself something that demands an explanation. This is not a proof in any formal sense, but it is a kind of evidence that the tradition takes seriously.

It is also worth knowing that Judaism contains a wide spectrum of theological positions, and you will not find one agreed answer waiting for you. There are Orthodox Jews who hold to a personal God who hears prayer and intervenes in the world. There are liberal and Reform communities where God is understood more as the ground of moral meaning or as the force that draws human beings toward their best selves. There are thinkers like Mordecai Kaplan, the founder of Reconstructionist Judaism, who reframed God entirely in naturalistic terms. All of these voices sit within the same broad tradition. What unites them is less a fixed belief and more a commitment to taking the question seriously, to staying in the argument, and to living in a way that keeps the question alive rather than closing it down prematurely.

If you are genuinely wrestling with this, Judaism would probably say: keep wrestling. Read, question, observe, pay attention to what moves you and what leaves you cold. The tradition trusts that a person who engages honestly with these questions is doing something real and valuable, whatever conclusions they reach. There is no moment where you are supposed to have it all resolved. Some of the greatest Jewish minds have spent their whole lives sitting with the uncertainty, and they considered that a worthy way to live, not a problem to be fixed.