The root "shad" (שד) means "breast".[12] Biblical scholar David Biale notes that, of the six times that the name "El Shaddai" appears in the Book of Genesis, five are in connection with fertility blessings for the patriarchs. He argues that this original understanding of "Shaddai" as related to fertility was forgotten by the later authors of Isaiah, Joel, and Job, who understood it as related to root words for power or destruction (thus explaining their later translation as "all-powerful" or "almighty").[13]