At the last moment, Hashem sends an angel to stop Avraham. Because of Avraham's unquestioning obedience, Hashem promises him that even if the Jewish People sin, they will never be completely dominated by their foes. The Parsha ends with the genealogy and birth of Rivka. The price of everything goes up and up. With one exception.
Talk is cheap and gets cheaper by the month.
We live in a world where hyperbole has become the normal means of communication. We've already run off the Richter scale of enthusiasm and there's nowhere else to go. One of the casualties of modern life is our appreciation of the importance of words. G-d created the universe with words. There is a mystical concept that the building blocks of creation are the letters of the Hebrew alphabet.