<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="color: rgb(0, 0, 64); font-family: Arial; ">There are 620 letters in the Aseret HaDibrot of Yitro. (TARYAG + 7 Rabbinic Mitvot.) </span><div><font class="Apple-style-span" color="#000040" face="Arial"><br></font></div><div><font class="Apple-style-span" color="#000040" face="Arial">The Shabbos commandment consists of 32% of the words of the Aseres HaDibros, even more than the Avoda Zara, commandment #2 (29%). </font></div><div><font class="Apple-style-span" color="#000040" face="Arial">AND...The letter ZAYIN appears only once - ZACHOR. Appropriate for Shabbat to begin with ZAYIN, whose numeric value is 7. Also, as the Baal HaTurim points out, </font></div><div><font class="Apple-style-span" color="#000040" face="Arial">the Shabbos commandment begins with the 7th pasuk of Aseres HaDibros.</font></div></body></html>