Adam Clarke on 2 Kings 7:12

The king arose in the night - This king had made a noble defense; he seems to have shared in all the sufferings of the besieged, and to have been ever at his post. Even in vile Ahab there were some good things!

They know that we be hungry - This was a very natural conclusion; the Syrians by the closest blockade could not induce them to give up the city, but knowing that they were in a starving condition, they might make use of such a stratagem as that imagined by the king, in order to get possession of the city.