This seventh letter of the Hebrew AlephBet Zayin with the Gematria of 7 and a ‘z’ sound is a very significant letter. The Letter Zayin ז means “Victory” or “Weapon” like a sword as its shape implies. The Rabbis link the shape of Zayin to the staff of Moses that He used for the miracles in Egypt and especially when it turned into a serpent, which in Hebrew is Nachash נַחָשׁ with a Gematria of 358. This has the same Gematria as Mashiach מַשָׁיח Messiah! There is much more that could be said about this connection and especially where Moses is instructed to place a serpent on a pole to save the Israelites from dying from the bite of the snakes in Numbers 21.
Also with Zayin has a value of 7 it has prophet significance pointing to the End-Times as discussed in the article on Shemini Ateretz. We are in the year 5778 approaching 6000 before entering the 7th Millennium.
The Mystery of Zayin
The Shabbat and Zayin are connected with Shabbat being the 7th Day. The Rabbis in Talmud Shabbat 118a states: “He who observes [the practice of] three meals on the Sabbath is saved from three evils: the travails of the Messiah, the retribution of Gehinnon, and the wars of Gog and Magog.”Sounds silly but the Rabbis say it refers to three events/meals in Shemot (Exodus)16:25
ה אכלהו היום כי־שׁבת היום ליהוה היום לא תמצאהו בשׂדה׃ ויאמר משׁ
. VaYomer Moshe ichluhu HaYom Ki-Shabbat HaYom HaShem HaYom Lo Timitzuhu Besadeh
ye shall not find it in the field. And Moses said: 'Eat that to-day; for to-day is a Sabbath unto the LORD; to-day
Here HaYom, to-day is mentioned 3 times to represent the 3 meals within the Shabbat which is Seven:-
1st Meal: Friday evening meal based on the Merit of Isaac, Isaac was bound ready to be sacrificed as if he was sacrificed and stands in the gap between us and God so that we may enter into the Kingdom of God.
2nd Meal: Merit of Abraham: Dagger of Abraham is called in Hebrew Machelet מַאכְלֶת rooted in the word אכְלֶ akal to devour, eat, consume A Knife of feeding!
3rd Meal: Feast of Jacob but known as Meal of Messiah Why? it happens in Shabbat He is coming to rule in the 7th Millinium, The Shabbat.
We are commanded to Remember )Zikron זִכָּרוֹן) the Sabbath Day in which we remember Abraham with the Binding and Sacrifice of Isaac and finally we remember the Mashiach, Messiah!
This is the essence of the letter Zayin!
It also represents a sword that is holding to fight for us against Satan who tries to bring us to Sin, the Letter Chet which follows Zayin.