The 6th letter of the Hebrew Aleph-Bet is vav. This word means a hook or a nail. There are only two Hebrew words that begin with a vav, but this letter appears the most times in scripture. It is not just coincidence that the other Hebrew word is vazar, which means to be guilty, or to bear a burden. It is only used one time in scripture.
“The way of a GUILTY MAN is devious and strange, but as for the pure, his work is right.”
The reason for the numerous appearances of the ‘vav’ is due to it’s use as the conjunction (and, but, now, so, etc). This word is used quite extensively to tie things together or to bind them. This places the two meanings of ‘binding together’ and a ‘nail’ into a provocative relationship. It is not happenstance that the Messiah was ‘nailed’ to a tree for our SINS, and that He DESTROYED the works of the DEVIL. It is the ‘vav’ or the nail that connects two things together. We know that when the Messiah was nailed to the tree, that He became SIN for us, that we might be made the righteousness of God in Him. Sin was literally joined together with Messiah that He might bear our burden and take our place. All these concepts are tied (pun intended) together with the number six. The nails left prints in His hands and in His feet. In the Greek language and gematria, a form of the letter ‘s’ is inserted as the 6th letter. It is called the stigma. To explain this I will quote from E.W. Bullinger’s popular book on numbers entitled “Number in Scripture”:
“This letter ‘s’ (called stigma) is used for the number 6. Why this letter and number should be thus associated we cannot tell, except that both are intimately connected with the ancient Egyptian ‘mysteries’. The three letters SSS were the symbol of ISIS, which is thus connected with 666 …”