Bob, lacking any form of system gift never mind just a communication one, was completely unaware of this message. However, he was not as utterly confident in his abilities as a certain love-crazed psycho, and so rarely ventured into the light at all.
Instead, he stuck to the shadows of the wall that was still in progress of being built, while he thoroughly inspected the perimeter for any possible weaknesses.
Such weaknesses were not limited to the wall itself, seeing as its most obvious weakness was the fact that it had yet to be finished and still had many holes, which leaked their Gods 'Divine Light' out into the outside world.
But beyond that, Bob was focused on the weaknesses of the people. He was familiar with the term 'a chain is only as a strong as its weakest link' and in this case, a cities population were always going to be its weakest link. Destruction from within was the end of many empires throughout history, according the memories of his Father.
