And while frequenting them, He did not preach only, but also showed forth miracles. And this, because on every occasion, whensoever anything is done strange and surprising, and any polity is introduced, God is wont to work miracles as pledges of his power, which He affords to them that are to receive His laws. Thus, for instance, when He was about to make man, He created a whole world, and then gave him that law which he had in Paradise. And when He was to give laws to Noah, He showed forth anew great miracles, in that He reduced again the whole creation to its elements,and made that fearful sea to prevail for a full year; and in that, amid so great a tempest, He preserved that righteous man. And in the time of Abraham too He vouchsafed many signs; as his victory in the war, the plague upon Pharaoh, his deliverance from dangers. And when about to legislate for the Jews, He showed forth those marvellous and great prodigies, and then gave the law. Just so in this case also, being to introduce a certain high polity, and to tell them what they had never heard, by the display of the miracles He confirms what He saith.