having good behavior among the nations, so in that which they speak against you as evil-doers, they may by your good works, which they see, glorify God in the day of visitation.

 (a) Logos ( G3056) is the great Stoic word for the reason which guides the universe; logikos ( G3050) is a favourite Stoic word which describes what has to do with this divine reason which is the governor of all things. If this is the word's connection, clearly spiritual is the meaning. 