Zayin — the 7th Hebrew letter
ז
Spelled זין — full spelling gematria 67
Symbolism
Seven — Sabbath, completion, covenant time; the weapon/tool that cuts and the crown that rules
What the letter is built from
Traditionally a vav wearing a crown — a scepter; or a yod set atop a vav
Its first root in Scripture
The first zayin root is zera, seed — planted on day three
Messianic thread
Zayin opens zachar (remember) — 'Remember the Sabbath.' The seventh letter carries the seventh day, and the crowned vav pictures rest as reign: the Sabbath is a scepter, not a nap.
In the mystical tradition
The woman of valor is 'a crown to her husband' — tradition links zayin's crown to the Sabbath bride. Seven circuits, seven blessings, seven lamps.
Wisdom of the letter
Mazon (sustenance) begins with zayin: the tool that harvests bread and the day that feeds the soul share one letter.