For a very long time, it has been accepted there are seven days in a week but that has not been the practice with all cultures. Some cultures had a ten-day week, some an eight-day week, a seven-day week and even a four-day week. Welcome to the twenty-first torah and haftarah reading. It is titled ki tisa and means when you take. In this episode, I shall be discussing the sign of the shabbat.