1) Yosef had been in prison in Egypt for 12 years and was now in a position of power, interpreting dreams for Pharaoh. 2) Pharaoh had dreams of 7 fat cows being eaten by 7 thin cows, and of full ears of corn being eaten by thin ears, which Yosef interpreted as 7 years of plenty followed by 7 years of famine. 3) Yosef's brothers came to Egypt to buy food during the famine and did not recognize Yosef, who accused them of being spies before revealing his identity to them.