The unknown artist depicts the story of Joseph and his brothers. In Genesis, Joseph is the last of 12 brothers, all jealous of him because he is their father's favorite.
He will be sold into slavery by his last. The story of Joseph still remains incredible and mysterious today. But the episode of the well, which is represented here, is very well known.
The eldest, Reuben, does not want Joseph to be killed. Instead, he will be stripped and thrown at the bottom of a well.
Judah offers to sell Joseph to a caravan of Ishmaelite merchants. We see them represented in the background of the gouache with their camel.
But some Midianite merchants, who were passing by, pulled Joseph out of the cistern. They sold him for twenty pieces of silver to the Ishmaelites, who took him to Egypt