Joseph was the eleventh son of the Patriarch Jacob, born to him of Rachel. Envied by his brothers on account of certain dreams that he had, he was first cast into a pit. Jacob was deceived by his other sons into believing, on the basis of a bloodstained robe, that Joseph had been devoured by a wild beast. Joseph was then sold to some Ishmaelite travellers for thirty pieces of silver. The Ishmaelites in turn sold him to Potiphar, the chief eunuch of Pharaoh, the King of Egypt.
Holy and Great Monday is for the Church an occasion to remember the All-comely Joseph. His story is known from the Old Testament. His brothers sell him as a slave, he is brought to Egypt, the wife of his master Potiphar attacks him erotically, he resists her, he is thrown into prison, he interprets the dream of Pharaoh about the thick and thin cows, and then essentially he becomes the Prime Minister of Egypt, saving his father Jacob, his brothers and all the people of Israel.