In the fire temple of Yazd, the priest opens a small, worn book bound in dark leather. The larger manuscript on the lectern stays closed, its pages untouched for the daily service. That small book is the Khordeh Avesta, the “Little Avesta.” The closed one is the Zend Avesta, the full scripture with its ancient commentary. The difference is not size alone: it is the difference between a library and a handbook, between the complete revelation and the part you carry with you.
The Zend Avesta is the complete collection of Zoroastrian sacred texts in the Avestan language, accompanied by a Pahlavi translation and commentary (the Zend). The Khordeh Avesta is a condensed selection of the most essential prayers and hymns, compiled for daily use by priests and laypeople alike.
What the Two Texts Actually Contain
The Zend Avesta is not a single book. It is a corpus that once included twenty-one nasks (books), most of which were lost after Alexander’s invasion of Persia in 330 BCE. What survives today falls into several divisions:
- Yasna – the central liturgical text, containing the Gathas (the seventeen hymns attributed to Zoroaster himself).
- Visperad – a supplement to the Yasna, used in seasonal festivals.
- Vendidad – a priestly code dealing with purity, law, and demonology.
- Yashts – twenty-one hymns to individual divinities (yazatas).
- Khordeh Avesta – the “Little Avesta,” which is itself a part of the larger collection.
The Khordeh Avesta, paradoxically, is both a subset of the Zend Avesta and a distinct compilation. It contains the most frequently recited prayers: the five Gahs (daily prayers), the Afrinagan (blessings), the Nyayeshes (liturgies to the sun, moon, and waters), and selected Yashts. It omits the Vendidad, the Visperad, and most of the Yasna except for the Gathas. A Zoroastrian household might own a Khordeh Avesta; only a fire temple or a scholar would own the full Zend Avesta.
Where the Zend Came From: A History of Loss and Recovery
The original Avesta was composed orally, likely between 1500 and 1000 BCE, in a language related to Vedic Sanskrit. Zoroaster’s own hymns, the Gathas, are the oldest layer. For centuries the texts were memorized and recited by priests. Writing came later, under the Achaemenid Empire (c. 550–330 BCE), but no manuscripts from that period survive.
Alexander’s conquest of Persia in 330 BCE is traditionally blamed for the destruction of the Avesta. The Denkard, a ninth-century Pahlavi text, claims that Alexander burned the royal copy at Persepolis and scattered the rest. Whether the loss was total or partial, the Sassanian dynasty (224–651 CE) undertook a systematic reconstruction. The high priest Tansar (or Tosar) and later Adurbad-e Mahraspandan (c. 4th century CE) collected surviving fragments and standardized the canon. It was during this period that the Zend – the Pahlavi translation and commentary – was added. The word zend itself means “interpretation” or “explanation,” not “language,” as is sometimes assumed.
The Khordeh Avesta emerged from this same period, though its exact date of compilation is unknown. It was designed for practical use: a priest could carry it to a home ceremony; a layperson could recite from it during the five daily prayers. By the ninth century CE, when the Denkard was written, the Khordeh Avesta was already standard.
Why the Commentary Matters
The Zend is not a simple translation. It is a running gloss that explains obscure Avestan words, clarifies ritual instructions, and sometimes adds entire passages of legal or theological reasoning. Without the Zend, much of the Avestan text would be unintelligible. The Avestan language had ceased to be spoken by the late Achaemenid period, so the Pahlavi commentary became the key that unlocked the scripture.
This is why the full text is called the Zend Avesta – the Avesta with its Zend. A manuscript that contains only the Avestan text without the Pahlavi is simply called the Avesta. The Khordeh Avesta, by contrast, is almost always published with a Gujarati or Persian translation, not the Pahlavi Zend, because its audience is the modern practitioner, not the scholar-priest.
How Each Text Is Used in Practice
The Khordeh Avesta is the text of daily life. A Zoroastrian recites from it at the five gahs (periods of the day): dawn, midday, afternoon, sunset, and night. The prayers are short, often no longer than a page. The Kushti ritual – the untying and retying of the sacred cord – is accompanied by prayers from the Khordeh Avesta. Funerals, weddings, and house blessings draw on its Afrinagan and Farokhshi sections.
The Zend Avesta is used in the Yasna ceremony, the central act of Zoroastrian worship, which requires a priest who has memorized the entire liturgy. The Vendidad is recited during purification rites and the Visperad during the six seasonal festivals (Gahanbars). A priest might consult the Zend to resolve a legal question about purity or to understand the meaning of a difficult passage. But he does not carry it to a home visit. That is the job of the Khordeh Avesta.
The Gathas: The Core That Both Share
The oldest and most sacred part of the Avesta is the Gathas, seventeen hymns composed by Zoroaster himself. They appear in both the Zend Avesta (as part of the Yasna) and in the Khordeh Avesta (usually as a separate section). The Gathas are metrical, composed in a dialect older than the rest of the Avestan corpus. They address Ahura Mazda directly, wrestle with the problem of evil, and call for a choice between truth (asha) and falsehood (druj).
A Zoroastrian who recites the Gathas from the Khordeh Avesta is doing exactly what a priest does in the Yasna ceremony, though the priest recites them in the full liturgical context with offerings of haoma and milk. The difference is not in the words but in the frame.
Common Misconceptions
“Zend is a language.” It is not. Zend means “commentary.” The language of the Avesta is Avestan; the language of the Zend is Pahlavi (Middle Persian). The phrase “Zend Avesta” was misunderstood by early European scholars, who thought Zend was the name of the language. The error persists in older books.
“The Khordeh Avesta is a different religion.” It is the same religion, same prayers, same theology. The Khordeh Avesta is simply a selection for convenience, not a separate canon.
“The Avesta was written by Zoroaster.” Only the Gathas are directly attributed to him. The rest of the Avesta was composed by later priests over centuries.
“The Zend Avesta is complete.” It is not. Of the original twenty-one nasks, only one (the Vendidad) survives in full. The rest exist only in summaries or fragments.
FAQ
Can you read the Zend Avesta without knowing Avestan?
Only with the Pahlavi Zend, and even then you need training in both languages. Modern translations into English or Gujarati are available for study.
Is the Khordeh Avesta used by all Zoroastrians?
Yes, by both the Parsis of India and the Zoroastrians of Iran. The prayers are the same, though the accompanying translations differ (Gujarati vs. Persian).
What is the Zend, exactly?
It is the Pahlavi translation and commentary that accompanies the Avestan text. It was added during the Sassanian period (3rd–6th centuries CE) to explain the archaic language.
Are there English translations of both texts?
Yes. James Darmesteter translated the Zend Avesta (the Vendidad, Yasna, Yashts, and Visperad) in the 19th century. The Khordeh Avesta has been translated by several scholars, including Jivanji Jamshedji Modi.
The Zend Avesta and the Khordeh Avesta are not rivals. They are two expressions of the same tradition: one for the scholar and the priest, one for the household and the heart. If you want to understand Zoroastrian theology, you read the Zend Avesta. If you want to practice it, you open the Khordeh Avesta. Both point to the same fire.
For more on the world’s sacred writings, explore our sacred texts hub. If you need a quick reference for the language of the Avesta, see our glossary entry for Avestan. And for a deeper look at how these texts fit into the broader Zoroastrian tradition, read our guide to Zoroastrian scriptures.