Ephesians 2: 20-21

“And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone; In whom all the building fitly framed together groweth unto an holy temple in the Lord”

We know that Christ is the head of the Church we also have to figure out how the rest of it is set up.  This though is already done for us by Christ, for he decided how his Church was organized.