The highest (worst) sins, according to rabbis, are idolatry, adultery, bloodshed, and sorcery and calling God’s name in vain. A parasang is a length or measurement of distance used in what is now Iran. It varied according to the region. The north-eastern parasang was about 15,000 paces; the north-western parasang was 18,000 paces, and the one of the southwest was merely 6,000 paces. The measurement called the "true parasang” was about 9,000 paces.
