Knot of Isis amulet: history and protection

A red jasper amulet shaped like a knot, found in the wrappings of a mummy. The deceased was meant to wear it over the heart. The Egyptians called it the Tyet (tee-et). The Knot of Isis is an ancient Egyptian amulet representing the blood and girdle of the goddess Isis, worn for protection in life and especially in the afterlife. It appears in funerary texts as early as the Old Kingdom and remained in use for over two thousand years.

What exactly is the Knot of Isis amulet?

The Tyet (also spelled Tet or Tjet) is a hieroglyphic sign shaped like a knot or buckle, with two loops at the top and a folded body that tapers downward. It resembles the ankh but the arms are folded down rather than extended outward. The word tyet means “knot” or “buckle” in Egyptian. The amulet was most often carved from red jasper, carnelian, or red glass, though examples in wood, faience, and gold survive. The color red was essential: it evoked blood, the life force, and the protective power of the goddess Isis.

The Tyet is first attested in the Pyramid Texts (circa 2400 BCE), where it appears as a protective symbol for the king. By the New Kingdom (1550–1070 BCE), it had become a standard funerary amulet, prescribed in the Book of the Dead. Spell 156 of that text instructs: “You shall make a Tyet amulet of red jasper, threaded on a strip of sycamore bark, and placed on the neck of the deceased.” The spell promises that the wearer will have the protection of Isis and that the amulet will “drive away the one who would do harm.”

Where does the Knot of Isis come from? A history in three dynasties

The earliest known Tyet amulets date to the Middle Kingdom (circa 2055–1650 BCE), though the hieroglyph itself is older. In the Pyramid Texts of the Old Kingdom, the Tyet appears as a sign for “life” and “welfare,” often paired with the ankh and the djed pillar. It was not yet exclusively linked to Isis. That association solidified during the New Kingdom, when the goddess’s cult rose to prominence.

The Book of the Dead, compiled from the 16th century BCE onward, codified the Tyet’s role. Spell 156 is one of the few spells that specifies both the material and the placement of an amulet. The red jasper was not arbitrary. The Egyptians believed that red stones held the essence of blood, and the blood of Isis was said to be the source of her magic. In the myth of Osiris, Isis used her own blood to restore her husband’s body after his dismemberment by Set. The Tyet amulet was a tangible piece of that story.

By the Late Period (664–332 BCE), the Tyet was mass-produced in faience and glass for the growing market of funerary goods. Archaeologists have found hundreds of examples in tombs from Saqqara to Thebes. The amulet was often placed directly over the heart, wrapped in linen bands, or strung on a necklace. The practice continued into the Ptolemaic and Roman periods, though with diminishing frequency.

What does the Tyet symbolize? Blood, girdle, and the goddess’s grip

The Tyet has three layers of meaning, each reinforcing the others.

First, the shape itself is a knot. In Egyptian art, Isis is sometimes shown holding a knot or wearing a girdle. The Tyet is explicitly called the “girdle of Isis” in several texts. A girdle binds and secures. It holds a garment in place, but it can also be loosened. The knot symbolizes the goddess’s ability to bind and release, to protect and to free. In funerary contexts, the Tyet was meant to bind the deceased to the goddess’s protection and to keep the soul from wandering.

Second, the red color is the blood of Isis. Blood in Egyptian thought was not merely a bodily fluid. It was the substance of life and the vehicle of magical power. The goddess’s blood, shed in the process of resurrecting Osiris, became a protective force. The Tyet amulet was a drop of that blood, preserved in stone. Spell 156 says the amulet is “the blood of Isis, the magic of Isis, the power of Isis.” The wearer absorbed those qualities.

Third, the Tyet is a hieroglyph for “welfare” or “well-being.” In inscriptions, the sign often appears in phrases like “life, stability, and welfare” (ankh, djed, tyet). The three symbols together covered the full spectrum of existence: life (ankh), endurance (djed), and protection (tyet). The Tyet was not a substitute for the ankh. It was a distinct concept: the state of being guarded and whole.

How was the Knot of Isis used in practice?

The primary use of the Tyet amulet was funerary. The Book of the Dead spell instructs the living to place it on the neck of the mummy during the wrapping ceremony. The amulet was threaded on a strip of sycamore bark, a material associated with the goddess Hathor and with the tree that sheltered Isis when she hid the infant Horus. The bark was not decorative. It was a conduit for the goddess’s presence.

The spell was recited as the amulet was placed. The words invoked Isis directly: “O Isis, great of magic, protect this one. Let your blood flow for him. Let your knot bind him to life.” The amulet was then covered with linen and left in place. In some tombs, multiple Tyet amulets were found: one on the neck, one over the chest, and one tucked into the wrappings near the pelvis.

Did the living wear the Tyet? Evidence is thinner, but not absent. Small Tyet amulets have been found in domestic contexts, and the hieroglyph appears on scarabs and jewelry from non-funerary sites. The Egyptians wore amulets for protection during childbirth, travel, and illness. Given the Tyet’s association with blood and life force, it would have been a natural choice for women in labor or for anyone facing a crisis. But the textual record is silent on this. We have no spells for a living person wearing the Tyet, only for the dead.

How does the Tyet compare to other Egyptian amulets?

The Tyet is often confused with the ankh, but the two are distinct. The ankh has a loop at the top and straight arms; the Tyet has two loops and folded arms. The ankh means “life” in the sense of breath and vitality. The Tyet means “welfare” in the sense of protection and well-being. They appear together in inscriptions, but they are not interchangeable.

The djed pillar, symbol of stability and the backbone of Osiris, is the Tyet’s frequent companion. In funerary art, the djed and the Tyet flank the deceased, one on each side. The djed provides structural support; the Tyet provides protective binding. Together they ensure the deceased remains whole and guarded.

The sa amulet, a stylized papyrus stem, was another protective symbol, but it was associated with the goddess Wadjet and with lower Egypt. The Tyet was specifically tied to Isis and to the myth of Osiris. The sa amulet was more generic. The Tyet carried a narrative weight that the sa did not.

What are the common misconceptions about the Knot of Isis?

One persistent error is that the Tyet is a female-only amulet. Because it is linked to Isis and to blood (often menstrual blood in modern interpretations), some assume it was worn only by women. The archaeological record shows otherwise. Tyet amulets have been found in the tombs of men, women, and children. The amulet protected the individual, not a gender.

Another misconception is that the Tyet is the same as the ankh. The two symbols share a visual family, but they are distinct hieroglyphs with different meanings. The ankh is a sandal strap; the Tyet is a knot. The ankh appears in the mouth of the deceased to give breath; the Tyet appears on the neck to give protection. They are complementary, not identical.

A third error is that the Tyet is a modern Wiccan invention. Some contemporary pagan traditions have adopted the symbol as a representation of the goddess or of female power. That is a valid modern use, but it is not ancient. The Tyet was never a general goddess symbol in Egypt. It was a specific amulet with a specific spell. The Egyptians did not wear it for general “divine feminine” energy. They wore it because Isis’s blood was in the stone.

FAQ

Is the Knot of Isis the same as the ankh?
No. The ankh has a loop top and straight arms; the Tyet has two loops and folded arms. The ankh means “life,” the Tyet means “welfare” and protection.

What material was the Tyet amulet made from?
Red jasper was the prescribed material in the Book of the Dead, but carnelian, red glass, faience, wood, and gold were also used. The red color was essential.

Could the living wear the Knot of Isis?
Evidence is limited, but small Tyet amulets found in domestic settings suggest they were worn for protection during life, especially by women in childbirth.

What does the Tyet amulet protect against?
It protects against harm in the afterlife, including demons, decay, and the loss of the soul. In life, it would have guarded against illness, accident, and evil magic.

The Tyet today: a symbol that endures

The Knot of Isis is not a relic locked in a museum case. It is a symbol that continues to appear in jewelry, ritual tools, and magical practice. For those who work with Egyptian deities, the Tyet remains a direct link to Isis and her protective blood. For the curious reader, it offers a window into a world where a red stone knot could hold the power of a goddess. The amulet asks nothing of us except that we understand what it meant to the people who made it. And that understanding is itself a kind of protection.

If you want to explore further, start with our guide to ancient Egyptian amulets and the full collection of talismans and amulets. For a deeper look at the symbols that surrounded the Tyet, visit the glossary entry on the djed pillar.