In The Navy

The Latin word for ship is Navis.   The word “navy’ comes from this Latin word.  The place where people sit in a church is called the nave from this same Latin word.

In Romanesque and Gothic Christian abbey, cathedral basilica and church architecture, the nave is the main body of the church extending from the entrance (the narthex) to the transepts. It provides the central approach to the high altar. The term nave, from medieval Latin navis (ship), was probably suggested by the keel shape of its vaulting.^[1] 

The nave of a church, whether Romanesque, Gothic or Classical, extends from the entry—which may have a separate vestibule (the narthex)—to the chancel and may be flanked by lower side-aisles^[2] separated from the nave by an arcade. If the aisles are high and of a width comparable to the central nave, the structure is sometimes said to have three naves.

The term nave may have arisen (apart from the shape of the church resembling a ship, as mentioned above) because the ship represented the church: a ship was an early Christian symbol.

This reminds us of the nave of Noah’s Arc.   You want to be in the nave to be saved.   If you are not in the nave, you are going to drown.  

So, join the navy and get in the nave!