But you are a chosen race, a royal priesthood, a holy nation, a people for God's own possession, that you may show forth the excellencies of him who called you out of darkness into his marvelous light:

 (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. 