'Dust' in the Bible

The Lord God said to the serpent, "Because you have done this, cursed are you above all the wild beasts and all the living creatures of the field! On your belly you will crawl and dust you will eat all the days of your life.

By the sweat of your brow you will eat food until you return to the ground, for out of it you were taken; for you are dust, and to dust you will return."

And I will make your descendants like the dust of the earth, so that if anyone is able to count the dust of the earth, then your descendants also can be counted.

Then Abraham asked, "Since I have undertaken to speak to the Lord (although I am but dust and ashes),

Your descendants will be like the dust of the earth, and you will spread out to the west, east, north, and south. All the families of the earth will pronounce blessings on one another using your name and that of your descendants.