http://en.wikipedia.org/wiki/Catch_of_153_fish

This is really interesting. There is also a symbolic passage similar to that in the Gospel of Mark. When Jesus says to watch out for the “yeast of the Pharisees and Herod,” his disciples think he is talking about literal bread. Jesus reminds them of the importance of the numbers, asking how many baskets were leftover after he divided five among 5000, the answer being twelve, and how many baskets were leftover after he divided seven among 4000, the answer being seven. Emphasizing its symbolic nature, Jesus replies, “Do you still not understand?”

Most people don’t know what it means. Although “twelve” and “seven” may fit in with the whole solar symbolism found in passages like that of Revelation (12 months; 7 days), I think they have to do with a secret history. The Sepher Toldoth Yeshu says that Jesus originally had 5 disciples, which would symbolize the original five loaves. Although they were executed, they fed 5000 Jews. The Sepher Toldoth Yeshu then said there were 12 original apostles that rose up in the first century B.C., which would account for the 12 basket of leftovers. These taught 4000 people, leaving seven baskets of leftovers, perhaps symbolizing the 7 churches of Asia Minor (also as referred to in Revelation).