In Revelation 6:15, the powerful - also sometimes translated as strong, mighty, or potent - refer to the truths which make up our external minds. They are paired with the commanders of thousands, which are the related good external or natural loves that we have. Note, too, that they are listed after the kings, the great ones, and the rich, which here stand for more interior goods and truths.

(Odkazy: Apocalypse Explained 408)

8578. 'And take with you some of the elders oh Israel' means with the help of leading truths. This is clear from the meaning of 'the elders of Israel' as the leading characteristics of wisdom and intelligence that accord with good and with truth, dealt with in 6524, 6525, 6890, 7912, thus leading truths since these belong to intelligence and wisdom.