(which translates as "I will be that which I will be") and which is how God describes himself to Moses in Exodus 3:13–15. This phrase can be applied to the tetragrammaton YHWH, which can be understood as an anagram for the three states of being: past, present and future, conjoined with the conjunctive Hebrew letter vav. There is early support for this interpretation, in that the Septuagint translates "Shadday" in several places as "ὁ ἱκανός", the Sufficient One (for example, Ruth 1:20, 21). Apotropaic usage of the name "Shaddai" The name "Shaddai" often appears on the devices such as amulets or dedicatory plaques. More importantly, however, it is associated with the traditional Jewish customs which could be understood as apotropaic: male circumcision, mezuzah and tefillin. The connections of the first one with the name Shaddai are twofold. According to the biblical chronology it is El Shaddai who ordains the custom of circumcision in Genesis 17:1 and, as is apparent in midrash Tanhuma Tzav 14 (cf. a parallel passages in Tazri‘a 5 and Shemini 5) the brit milah itself is the inscription of the part of the name on the body:The Holy One, blessed be He, has put His name on them so they would enter the garden of Eden. And what is the name and the seal that He had put on them? It is "Shaddai". [The letter] shin He put in the nose, dalet – on the hand, whereas yod on the {circumcised} [membrum]. Accordingly, {when} He goes to {His eternal home} (Ecclesiastes 12:5), there is an angel {appointed} in the garden of Eden who picks up every son of which is circumcised and brings him {there}. And those who are not circumcised? Although there are two letters of the name "Shaddai" present on them, {namely} shin from the nose and dalet from the hand, the yod (…) is {missing}. Therefore it hints at a demon (Heb. shed), which brings him down to Gehenna.Analogous is the case with mezuzah – a piece of parchment with two passages from the Book of Deuteronomy, curled up in a small encasement and affixed to a doorframe. At least since the Geonic times, the name "Shaddai" is often written on the back of the parchment containing the shema‘ and sometimes also on the casing itself. The name is traditionally interpreted as being an acronym of shomer daltot Yisrael ("the guardian of the doors