For when it descended upon Her it was Yod י, following which it is cut into three, to become a crownlet and a crown, upon the head of the three Patriarchs, so that it will be the crown of Torah, and the crown of the Priesthood, and the crown of Kingship, and this is the mystery of Shyn, and the three crownlets upon it.
For the head of the sword is Yod י, the body of the sword is Vav ו, its two edges blades are Hei-Hei ה־ה, its sheath is ADNY.
And when YQVQ is without Its Shekhinah, It is judgement that cuts from every side. When It enters Its sheath, It is made into mercy and does not ‘cut judgements’. And the mystery of the sword in its sheath, is Y-A-Q-D-V-N-Q-Y, so it surely is.