Another name for G-d is El Shaddai. When we look at nature, what strikes us is that it is a system of limitations. What goes up must come down. The sun rules only by day. The moon only by night.
Water flows down.
The above verse tells us that when G-d spoke to Moshe, He spoke to Him as Hashem, but when He communicated with Avraham, Yitzchak and Yaakov, He made Himself known only through the name El Shaddai. The Talmud relates the story of a man whose wife passed away, leaving him with a baby son to feed. He had no money to pay for a wet-nurse. Rabbi Yosef praised the greatness of this man, since a miracle had been performed on his account. The greatness of Avraham, Yitzchak and Yaakov was that they related to G-d through the natural world.