Vav ו is: (Esth. 5:14)... a tree gallows, fifty cubits high – this is Hei ה (=5), which amounts through Yod י (=10) to fifty. Zarqa ֘ is a line that strangles with three letters, for the Lower Shekhinah judges the 4 capital punishments of the court: She strangles the wicked, and kills them with burning and stoning. And because of this: See now that I, I am He, (Deut. 32:39) it is this that is written: (Lev. 26:28)... and I will chastise you, even I... etc.
And just as, with His Name, He kills one who transgresses – upon excisions and capital offences of the court of the Torah – thus so He heals and revives through His Name, whoever observes them.