'Worm' in the Bible

If I have said to corruption, Thou art my father; To the worm, Thou art my mother, and my sister;

They lie down alike in the dust, And the worm covereth them.

The womb shall forget him; The worm shall feed sweetly on him; He shall be no more remembered; And unrighteousness shall be broken as a tree.

How much less man, that is a worm! And the son of man, that is a worm!