The Hebrew letter כ (Kaph) is the eleventh character of the alphabet, with a numerical value of 20. Its name derives from the Semitic root kaph, meaning "palm of the hand" or "hollow," evoking the image of a cupped hand ready to receive or grasp. This symbolism underscores themes of potential, containment, and the active power of manifestation through receptivity.

Position on the Tree of Life

Kaph corresponds to the 21st path on the Tree of Life, which connects the sephirah Chesed (Mercy, sphere of Jupiter) to Netzach (Victory, sphere of Venus). This path represents the channel through which the expansive, benevolent energy of Chesed is transmitted into the structured, emotional realm of Netzach. It embodies the principle of disciplined generosity—the ability to hold and direct abundance without dissipation.

Astrological and planetary correspondence

In classical Qabalah, Kaph is linked to the planet Jupiter (Tzedek), reflecting its qualities of expansion, wisdom, authority, and good fortune. This association aligns with the letter's role as a vessel for divine bounty, echoing Jupiter's astrological influence over growth, prosperity, and moral judgment.

Historical context

The earliest form of Kaph in Proto-Sinaitic and Phoenician scripts was a pictograph of a hand with fingers extended, a symbol of grasp and action. In the Hebrew Bible, the letter appears in key terms such as kaphar (to cover, atone) and kaph (the palm used in blessing or oath-taking). The Kabbalistic text Sefer Yetzirah classifies Kaph as one of the twelve "simple letters" (those without a double pronunciation), assigning it to the month of Kislev (November–December), the sense of touch, and the zodiac sign of Sagittarius (the archer, a Jovian symbol). In the Bahir, Kaph is associated with the sephirah Chesed, emphasizing its role as a conduit for divine mercy. The letter's final form (ך) appears at the end of words, signifying the culmination of a process—the closed hand that has grasped its object.

In the 777 table, Kaph occupies step 21 of the Hebrew Letters column, serving as a foundational glyph for understanding the interplay of form and receptivity within the Qabalistic framework. Its correspondences reinforce the path's function as a bridge between the abstract generosity of Chesed and the concrete expressions of Netzach.