The birth of Isaac was a happy event, and not in the house of Abraham alone. The whole world rejoiced, for God remembered all barren women at the same time with Sarah. They all bore children. And all the blind were made to see, all the lame were made whole, the dumb were made to speak, and the mad were restored to reason. And a still greater miracle happened: on the day of Isaac's birth the sun shone with such splendor as had not been seen since the fall of man, and as he will shine again only in the future world.