"For this reason the suggestion has been made that the Pleiades may represent the residence of Jehovah..."
Hmmm. I wonder who made the suggestion? It sounds like Russell wanted to lend some weight to his crackpot theories, hence the use of the passive voice to infer that others have made this suggestion. I don't blame him; the leap he makes from the discoveries of his day to determining that the Pleiades is Jehovah's home is one that the most capable athlete would back away from.