Dust connects the serpent and the man in the weirdest way.
Then the Lord God said to the serpent,
“Because you have done this,
Cursed are you more than all the livestock,
And more than any animal of the field;
On your belly you shall go,
And dust you shall eat
All the days of your life;
Genesis 3:14 (NASB)
By the sweat of your face
You shall eat bread,
Until you return to the ground,
Because from it you were taken;
For you are dust,
And to dust you shall return.
You shall eat bread,
Until you return to the ground,
Because from it you were taken;
For you are dust,
And to dust you shall return.
Genesis 3:19 (NASB)