Satan Going Forth from the Presence of the Lord,
by William Blake
in The Book of Job
"Job" was one of Blake's last works and considered by many to be his masterpiece.
 So went Satan forth from the presence of the LORD, and smote Job with sore boils from the sole of his foot unto his crown.
 And he took him a potsherd to scrape himself withal; and he sat down among the ashes.
 Then said his wife unto him, Dost thou still retain thine integrity? curse God, and die.
 But he said unto her, Thou speakest as one of the foolish women speaketh. What? shall we receive good at the hand of God, and shall we not receive evil? In all this did not Job sin with his lips.
 Now when Job's three friends heard of all this evil that was come upon him, they came every one from his own place; Eliphaz the Temanite, and Bildad the Shuhite, and Zophar the Naamathite: for they had made an appointment together to come to mourn with him and to comfort him.
 And when they lifted up their eyes afar off, and knew him not, they lifted up their voice, and wept; and they rent every one his mantle, and sprinkled dust upon their heads toward heaven.
 So they sat down with him upon the ground seven days and seven nights, and none spake a word unto him: for they saw that his grief was very great.
Edinger (Encounter with the Self, A Jungian Commentary on William Blake's Illustrations to the Book of Job) sees the three friends or comforters as repressed aspects of Job's psyche which surface with the breakdown of the ego. Blake's images in the border suggest the grief of Job at the upper corners, and the failure of the guardian shepherds to keep watch in the lower corners.
This website allows one conveniently to view all the illustrations for Job.