8 refers to new beginings, rebirth, and ressurection. As` 7 is an ending to something, then 7+1=8: right after the end of one thing is the beginning of something new. There are 8 resurrections in the bible. In the Old Testament 8 days after the birth of a child, he/she was to be circumcised. There were eight miracles of Elijah as told in the bible. And God made eight covenants with Abraham.