In opening his comments on chapters 36-39, the center of this book of Isaiah, Webb writes,
"Ironically, it was the Assyrian invader who put the issue most succinctly: On whom are you depending? (36:5). It is a question which the book of Isaiah forces us to ponder again and again, and with good reason, for our response to it will determine the whole shape of our lives." - Webb, p147.
A question that of course we should ask ourselves and proactively answer in every situation we find ourselves in.