Isaiah turns his attention to Damascus, the capital of Aram, who made peace with Israel but only for nefarious purposes. Isaiah criticizes them for making an alliance and depending on their strength and power rather than looking to God. The sin of Aram and Israel was to forget the special message of the God of Israel. Pride in yourself is nothing special, so many nations roar like the sea, but Israel and it's TRUE allies should know better. They should be humble and turn their eyes toward their creator.