Hidden in Forty-Two Letters, on Ana BeKoach

Every time we usher in Shabbat, right after the six psalms, we say the same seven lines, Ana BeKoach. To say these words without knowing what they carry is to open a door with no lock on it at all.

Seven lines. Six words each. Forty-two, the product of six and seven, and that product itself is no accident. The first letters of these forty-two words, read in sequence, spell out God’s forty-two-letter name, one of the most hidden names tradition carries. Each line’s own six letters also yield a name of their own, six letters apiece, seven names for seven lines, one for each of the seven lower sefirot, from Chesed to Malchut.

Here are the seven lines themselves, the first letter of each word, the letter carrying that hidden name, marked in bold.
אנא בכח גדלת ימינך תתיר צרורה
קבל רנת עמך שגבנו טהרנו נורא
נא גבור דורשי יחודך כבבת שמרם
ברכם טהרם רחמי צדקתך תמיד גמלם
חסין קדוש ברוב טובך נהל עדתך
יחיד גאה לעמך פנה זוכרי קדשתך
שועתנו קבל ושמע צעקתנו יודע תעלמות

Behind the letters, there’s also something actually being said, and it’s spoken of far less. The first line pleads, “please, with the power of the greatness of Your right hand, release the bound.” A classical prayer commentary, Iyun Tefillah, explains this, our accumulated sins bind together into a knot, and that knot keeps our prayers from rising to the Throne of Glory. So the opening line of the forty-two-letter name has nothing to do with the name itself, it’s about a knot that needs to be untied. The second line opens with kabel, receive, from the very same root as the word Kabbalah itself, and that root returns again in the seventh line. As though the whole tradition circles around this one root, receiving.

These same seven lines also correspond to the seven days of the week, the first line to Sunday, the second to Monday, and so on. Some Hasidic commentaries tie the forty-two letters to the forty-two encampments of the desert in Bamidbar too, the forty-two stops the Israelites made from Egypt to Sinai, a journey from slavery to prophecy. Each letter, in this reading, is one stop on that journey, and the prayer itself is that journey being lived again, each time it’s said.

This name itself was built to be guarded, not exposed. Tractate Kiddushin, on its seventy-first page, lists who may even be taught it, pious, humble, middle-aged, even-tempered, sober, not insistent on their own rights. In the tenth century, Hai Gaon is the first sage to mention this name, yet even he knows of no prayer tied to it, writing only that it passed by word of mouth among the academies of Babylon. Rashi writes plainly that this name “was not given over to us.” The letters aren’t lost, they sit on every page of every prayer book. What’s lost is the knowledge behind the letters, their proper use, their real meaning.

Maimonides defends this distinction with real anger. In his own commentary on that same page of Kiddushin, he sharply criticizes anyone who thinks the letters themselves are the point, writing that wicked and ignorant people would put together any letters they liked and declare, here is a name with real power. To him, the point was never the letters, it was the moral preparation behind them, a person shaping their own character until they were fit to carry such a name. Judaism’s greatest rationalist stands against his own tradition’s most mystical text, and that very objection has traveled alongside the name itself, for centuries.

Zohar speaks at length of the forty-two-letter name itself, of its angels, its wings. But it never once mentions the text of Ana BeKoach, word for word. The name existed before the Zohar. The prayer is a garment fitted onto it later.

Even today, in most prayer books, the forty-two-letter acrostic is printed in small letters beside each line, but it is never spoken aloud. Only seen. And the prayer closes right after invoking that name with the words Baruch Shem, blessed be the Name, as though it knows that what has just been opened must be covered again at once.

Forty-two is a secret on its own too. The Hebrew word ima, mother, carries exactly this value, aleph one, mem forty, aleph one. The womb, that endless embrace before birth, is sealed with the same number, and the name itself wraps around creation the same way.

The deepest secret sits not in the letters, but in the man who carried them. Tradition ties this prayer to Rabbi Nehunya ben HaKanah, a sage said to have ascended to the heavenly chariot itself, teacher to Rabbi Yishmael. His students once asked him why he lived so long. His answer was three sentences. I never raised myself at a friend’s expense. I never went to sleep before forgiving someone who wronged me. I was always generous with my money. The man tracing the forty-two-letter name tied his own long life not to the letters, but to a forgiveness repeated every single night.

When exactly the prayer itself was written is still disputed, its earliest written trace lands deep in the Middle Ages, fourteen hundred years after Rabbi Nehunya’s own century. But the trail isn’t entirely dark. The earliest text closely resembling today’s version was recorded in the thirteenth century by Jacob of Segovia, and according to the scholar Moshe Hallamish, Jacob likely learned it from the Ashkenazi Hasidim, a mystical pietist movement living along the Rhine in the early twelfth century, who were already composing their own piyyutim around the forty-two-letter name. So these words weren’t born in a single moment, they drifted, over a century, from the hands of a German-Jewish mystical community into the hands of a Spanish sage.

Pattern isn’t isolated. Another work is attributed to Rabbi Nehunya too, Sefer HaBahir, the very text considered the founding book of Kabbalah itself, what modern scholars call the literary birth of Kabbalah. But the Bahir itself, just like this prayer, actually emerged between the late twelfth and early thirteenth centuries, out of an unidentified circle of Ashkenazi mystics. So Rabbi Nehunya’s name carries the same pattern across two different works, in two different centuries, tied to a first-century sage, yet actually rising out of the darkness of medieval Ashkenaz.

Not unique to Jewish tradition, this. Human communities, when they want to legitimize a new voice, often lean it against an old, continuous name, gaining weight by tying themselves to the past. From the Scottish kilt to British royal ceremony, a similar pattern has repeated itself again and again.

Saying this, though, doesn’t shrink the prayer’s own power. When a text was written, and by whose hand, is a separate question from whether the power it carries is real. For centuries, countless people have found comfort, protection, and hope in saying these seven lines, and that experience doesn’t depend on the text’s birth date. Maybe Kabbalah itself was born from this same universal human impulse, a new voice speaking by leaning its weight on an old name, but that voice carries its own reality, whatever the age of the name it leans on.
But even that gap carries a secret, maybe a name, long after it leaves its owner’s hand, can still carry the same power, if it passes through the right heart.

These seven lines’ own place isn’t accidental either. The Arizal’s students advised reciting them during Kabbalat Shabbat, after the six psalms, before Lecha Dodi. Some traditions repeat them alongside the Shema before sleep, others every evening of the Omer count, one day tied to one sefirah at a time. Seven days, seven weeks, forty-nine days, the same seven names circling back, again and again, in a different order each time.

The next time you say these seven lines, carry not only the forty-two letters, but the one sentence their bearer repeated every night. Maybe the lock that actually opens was never the name.