This weeks Parsha is Parshas Tzav, also called Shabbot Hagadol. It is called  Shabbot Hagadol because a miracle happened on this day. Hashem commanded The Jews to take a lamb and tie it to their bed, After four days they should kill the animal and roast  it. The miracle of this is that the Egyptians worshiped lambs and they did not even say a word about what the Jews are doing   
 Shabbat Shalom! Have a Good Shabbos!