CLOD & PEBBLE 2

Blake was saying far more with his little poem The Clod and the Pebble than is apparent with a superficial reading. The Clod is more than a lump of dirt; it is the  'dust of the ground' from which God formed man. 
 
Genesis 2
[6] But there went up a mist from the earth, and watered the whole face of the ground.
[7] And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
[8] And the LORD God planted a garden eastward in Eden; and there he put the man whom he had formed.
[9] And out of the ground made the LORD God to grow every tree that is pleasant to the sight, and good for food; the tree of life also in the midst of the garden, and the tree of knowledge of good and evil.

 In A Blake Dictionary, S. Foster Damon tells us on Page 88: "Clay is the living substance with which the creator works." He supports his statement with passages from Milton and Jerusalem: 

Milton, Plate 28 [30], (E 126)
"Antamon takes them into his beautiful flexible hands,
As the Sower takes the seed, or as the Artist his clay"     

New York Public Library
Milton 
Plate 41

Jerusalem, Plate 27, (E 173)
 "He witherd up the Human Form,
By laws of sacrifice for sin:
  Till it became a Mortal Worm:    
But O! translucent all within.

  The Divine Vision still was seen
Still was the Human Form, Divine
  Weeping in weak & mortal clay
O Jesus still the Form was thine.        
    
  And thine the Human Face & thine
The Human Hands & Feet & Breath
  Entering thro' the Gates of Birth
And passing thro' the Gates of Death"

In this passage in Milton we find the hard, unyielding, selfish pebble of our original poem as Urizen in the confrontation with Milton. Urizen attempts to subdue Milton with icy water poured on his brain. Milton replies by molding a human form of flesh for Urizen from the red clay of Succoth. 

Milton, Plate 19 [21], (E 112)
"Urizen emerged from his Rocky Form & from his Snows,
PLATE 19 [21]
And he also darkend his brows: freezing dark rocks between
The footsteps. and infixing deep the feet in marble beds:
That Milton labourd with his journey, & his feet bled sore
Upon the clay now chang'd to marble; also Urizen rose,
And met him on the shores of Arnon; & by the streams of the brooks    

Silent they met, and silent strove among the streams, of Arnon
Even to Mahanaim, when with cold hand Urizen stoop'd down
And took up water from the river Jordan: pouring on
To Miltons brain the icy fluid from his broad cold palm.
But Milton took of the red clay of Succoth, moulding it with care
Between his palms: and filling up the furrows of many years
Beginning at the feet of Urizen, and on the bones
Creating new flesh on the Demon cold, and building him,
As with new clay a Human form in the Valley of Beth Peor." 

Genesis 1
[26] And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.
[27] So God created man in his own image, in the image of God created he him; male and female created he them.