'Dust of the Earth' in the Bible

And I have set thy seed as dust of the earth, so that, if one is able to number the dust of the earth, even thy seed is numbered;

And I beat them as dust of the earth, As mire of the streets I beat them small -- I spread them out!

Now, O Jehovah God, is Thy word with David my father stedfast, for Thou hast caused me to reign over a people numerous as the dust of the earth;

Who hath measured in the hollow of his hand the waters? And the heavens by a span hath meted out, And comprehended in a measure the dust of the earth, And hath weighed in scales the mountains, And the hills in a balance?

Who are panting for the dust of the earth on the head of the poor, And the way of the humble they turn aside, And a man and his father go unto the damsel, So as to pollute My holy name.