The men use a hyperbole, an exaggeration, to emphasize that it is a very desirable place to live. Alternate translation: "where we will have everything there that we need" (See: [[rc://en/ta/man/translate/figs-hyperbole]])
The two negative words together emphasize a positive idea. Alternate translation: "has everything" (See: [[rc://en/ta/man/translate/figs-doublenegatives]])