Although popular in some circles, the Book of Jubilees is both a mathematical nightmare and what would amount to a comedy of errors if it was funny. That being said, it opens a vitally important window into the ways that Jews in the early years of Hasmonean rule were looking at the Gentiles and allows us a glimpse of what mindsets led to the later development of the differing sects within Judaism. Without this understanding, it is easy to make Mark 7:1-13 to be entirely about food instead of what it was really about--the ability of the Jewish believers in Yeshua/Jesus to take the Gospel into the Gentile world in fulfillment of the words of the Psalmists and the Prophets.