You are my favorite child, therefore I will give you a rainbow coat.
Joseph was Jacobs favorite son out of all his brothers. His brothers are jealous
Joseph's brothers saw some Egyptians that looked liked they would trade anything, the brothers thought of selling Joseph to THEM
One day, Jacob sent Joseph to check on his older brothers on the hillside to see what they were doing, but his brothers were talking about him and as soon as Joseph came, they were planning to put him in a well.
Joseph is sent to jail and is interpreting dreams.
Josephs brothers put goat blood on Josephs robe. While Joseph was working for the Pharoah
The famine had happened to like Joseph and put him in charge of food distribution. Jacob and his sons went to ask for help and didn't know that Joseph was the one helping them. After helping them Joseph reveals it's him.